A googolplex is the number 10^googol, equivalent to 10¹⁰¹⁰⁰ or 10^{Ten duotrigintillion} or 10^{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}.

Like the number googol, googolplex was thought of by Milton Sirotta, the nephew of mathematician Edward Kasner.

The company Google named their headquarters, the Googleplex, after the number.

A googolplexplex is a 1 followed by a Googolplex amount of zeros which is 10^googolplex (10^1010100 ).

• Exponent
• Graham's number
• Googol

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