In the American system each of the denominations above 1,000 millions (the American billion) is 1,000 times the preceding one (one trillion = 1,000 billions; one quadrillion = 1,000 trillions).
Zillion is not actually a real number; it's simply a term used to refer to an undetermined but extremely large quantity.
What is 1000000000000000 called? It depends on who is counting. British and Europeans would call it one trillion; Americans would call it one quintillion. British and Europeans call our billion, “one thousand million”; the same applies to higher numbers.
A quintillion is equal to 1 followed by 18 zeros, or a million trillions or a billion billions, or a million million millions. Quintillions, unlike quadrillions, exhaust economic usage entirely, and therefore are rarely seen outside science.
Written out in ordinary decimal notation, it is 1 followed by 10100 zeroes; that is, a 1 followed by a googol of zeroes.
But fair warning, Googolplex Written Out spans this many volumes: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000. Each of those volumes holds a million zeros.
Zillion sounds like an actual number because of its similarity to billion, million, and trillion, and it is modeled on these real numerical values. However, like its cousin jillion, zillion is an informal way to talk about a number that's enormous but indefinite.
Definitions of gazillion. a very large indefinite number (usually hyperbole) synonyms: billion, jillion, million, trillion, zillion. type of: large indefinite amount, large indefinite quantity.
With this definition, there is nothing (meaning: no real numbers) larger than infinity.
noun. cen·til·lion sen-ˈtil-yən. often attributive. US : a number equal to 1 followed by 303 zeros see Table of Numbers. also, British : a number equal to 1 followed by 600 zeros see Table of Numbers.
Google is the word that is more common to us now, and so it is sometimes mistakenly used as a noun to refer to the number 10100. That number is a googol, so named by Milton Sirotta, the nephew of the American mathematician Edward Kasner, who was working with large numbers like 10100.
What's bigger than a googolplex? Even though a googolplex is immense, Graham's number and Skewes' number are much larger. Named after mathematicians Ronald Graham and Stanley Skewes, both numbers are so large that they can't be represented in the observable universe.
The longest number with a name is the Googleplexian. A Googolplexian is a number with 10100 zeroes. Whilst larger numbers can be imagined, the Googolplexian is the largest number that could be found in the dictionary.
There are no names given to the numbers between googol, skewer's number, centillion, and googolplex. And, there is apparently no Global agreement on naming large numbers. According to many books (such as Mathematics, A human Endeavor by Harold Jacobs)2 the googol is one of the largest numbers ever named.
A unit of quantity equal to 1075 (1 followed by 75 zeros).
A unit of quantity equal to 1066 (1 followed by 66 zeros).
A unit of quantity equal to 1087 (1 followed by 87 zeros).
So that's the answer to your question. If infinity plus one is infinity, the only number that could be just before infinity is also infinity!
Notice how it's spelled: G-O-O-G-O-L, not G-O-O-G-L-E. The number googol is a one with a hundred zeros.
duo·de·cil·lion ˌdü-ō-di-ˈsil-yən. ˌdyü- often attributive. US : a number equal to 1 followed by 39 zeros see Table of Numbers. also, British : a number equal to 1 followed by 72 zeros see Table of Numbers.
A googol, officially known as ten-duotrigintillion or ten thousand sexdecillion, is a 1 with one hundred zeros after it. Written out, a googol looks like this: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.
There's not a googol of anything physical in the universe. On the other hand, numbers larger than a googol routinely arise in application. When you're counting potential things rather than physical things you can run into numbers much larger than a googol. This happens all the time in probability calculations.
Googolplex may well designate the largest number named with a single word, but of course that doesn't make it the biggest number. In a last-ditch effort to hold onto the hope that there is indeed such a thing as the largest number… Child: Infinity! Nothing is larger than infinity!