66900639160 has 16 divisors (see below), whose sum is σ = 150526438200. Its totient is φ = 26760255648.

The previous prime is 66900639137. The next prime is 66900639173. The reversal of 66900639160 is 6193600966.

It is a self number, because there is not a number n which added to its sum of digits gives 66900639160.

It is a congruent 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, 836257950 + ... + 836258029.

Almost surely, 2^66900639160 is an apocalyptic number.

It is an amenable number.

66900639160 is an abundant number, since it is smaller than the sum of its proper divisors (83625799040).

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

66900639160 is a wasteful number, since it uses less digits than its factorization.

66900639160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672515990 (or 1672515986 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 66900639160 in words is "sixty-six billion, nine hundred million, six hundred thirty-nine thousand, one hundred sixty".