66499792176 has 40 divisors (see below), whose sum is σ = 179260312320. Its totient is φ = 21202831936.

The previous prime is 66499792103. The next prime is 66499792181. The reversal of 66499792176 is 67129799466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30116556 + ... + 30118763.

It is an arithmetic number, because the mean of its divisors is an integer number (4481507808).

Almost surely, 2^66499792176 is an apocalyptic number.

It is an amenable number.

66499792176 is an abundant number, since it is smaller than the sum of its proper divisors (112760520144).

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

66499792176 is a wasteful number, since it uses less digits than its factorization.

66499792176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60235353 (or 60235347 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 66.

The spelling of 66499792176 in words is "sixty-six billion, four hundred ninety-nine million, seven hundred ninety-two thousand, one hundred seventy-six".