Googology Wiki is a free online encyclopedia and community dedicated to googology, the study of large numbers and their nomenclature. There are articles about numbers used on everyday life, as well as numbers far beyond human comprehension. This wiki was created to gather the rather sporadic large number community into a single place. If you are fascinated by numbers like googol and googolplex, and you want to know what a giggol, grangol or meameamealokkapoowa oompa is, why not help us out?

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Googology Wiki is an online encyclopedia and community dedicated to large numbers.

Welcome to the Internet's most comprehensive database of large numbers and fast-growing functions. We have made 11,358 articles since December 5, 2008. If you're fascinated by numbers like Meameamealokkapoowa oompa or googolplex, why not help us out? We encourage you to edit! As of December 5, 2020, Googology Wiki is now 12 years old and going strong!

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New to big numbers?

Googology is the mathematical study of large numbers, their properties, and their nomenclature. If you're interested in the subject, but you don't know where to start, try reading about some basic functions and ideas:

Also, be sure to check out the links below.

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I have this vision of hoards of shadowy numbers lurking out there in the dark, beyond the small sphere of light cast by the candle of reason. They are whispering to each other; plotting who knows what. Perhaps they don't like us very much for capturing their smaller brethren with our minds. Or perhaps they just live uniquely numberish lifestyles, out there beyond our ken.Douglas Reay


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  • November 22, 2021: Googology Wiki's URL was migrated to the standard "" domain, as announced here. Old URL (, and older is redirected to the new URL.
  • November 13, 2021: Now MathJax works on mobile device.
  • November 7, 2021: Definition of a large number, True EB Sequence Number, is on sale as a digital art of NFT (
non-fungible token). It might be the first googologism on NFT.

More news...

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This wiki's URL has been migrated to the primary domain.Read more here