66111758692 has 12 divisors (see below), whose sum is σ = 132223517440. Its totient is φ = 28333610856.

The previous prime is 66111758681. The next prime is 66111758717. The reversal of 66111758692 is 29685711166.

66111758692 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180567092 + ... + 1180567147.

Almost surely, 2^66111758692 is an apocalyptic number.

It is an amenable number.

66111758692 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66111758692 is a wasteful number, since it uses less digits than its factorization.

66111758692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361134250 (or 2361134248 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 66111758692 in words is "sixty-six billion, one hundred eleven million, seven hundred fifty-eight thousand, six hundred ninety-two".