googolplex
noun
goo·gol·plex ˈgü-ˌgȯl-ˌpleks 
: the figure 10 to the power of googol equal to {latex}10^{googol}{/latex} or {latex}10^{10^{100}}{/latex}
Example Sentences
Recent Examples on the Web Perusing this book will leave readers with awe, enough fun facts for many cocktail parties, and a deep appreciation for mathematicians like Padilla who can explain how understanding a googolplex leads us to the existence of doppelgängers. 
Amy Brady, Scientific American, 16 June 2022 A googolplex is written as a 1 followed by a googol zeros. WIRED, 16 May 2017
Amy Brady, Scientific American, 16 June 2022 A googolplex is written as a 1 followed by a googol zeros. WIRED, 16 May 2017 Word History
First Known Use
1937, in the meaning defined above