162

This number is a composite.

162 is the only number with a prime factorization of the form n * (n+1)^{n^n}. [Hunter]

10^(10^100)+10 (googolplex plus ten) has 162 prime factors less than 2^32 (or 4294967296). [Dobb]

π(162) = prime(1*6*2). It is the smallest number with this property. [Gupta]