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A Duoquinquagintillion (1 Duoquinquagintillion) is 10 to the power of 159 (10^159). This is a very gigantic number!

How many zeros in a Duoquinquagintillion?

There are 159 zeros in a Duoquinquagintillion.

What's before Duoquinquagintillion?

A Unquinquagintillion is smaller than a Duoquinquagintillion.

What's after Duoquinquagintillion?

A Tresquinquagintillion is larger than a Duoquinquagintillion.


A Duoquinquagintillionaire is someone whos assets, net worth or wealth is 1 or more Duoquinquagintillion. It is unlikely anyone will ever be a true Duoquinquagintillionaire. If you want to be a Duoquinquagintillionaire, play Tap Tales!

Is Duoquinquagintillion the largest number?

Duoquinquagintillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Duoquinquagintillion written out

Duoquinquagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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