Zootzootplex is the exponential factorial of the googolplex, or \( ext{googolplex}^{( ext{googolplex}-1)^{( ext{googolplex}-2)^{.^{.^{.^{4^{3^{2^{1}}}}}}}}}\). It was coined by Andrew Schilling at the age of four. In the hyperfactorial array notation zootzootplex can be expressed as \( ext{googolplex}!1\).