66792716900 has 72 divisors (see below), whose sum is σ = 178387957440. Its totient is φ = 21138791040.

The previous prime is 66792716897. The next prime is 66792716917. The reversal of 66792716900 is 961729766.

It is a super-2 number, since 2×66792716900² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3660830 + ... + 3679029.

It is an arithmetic number, because the mean of its divisors is an integer number (2477610520).

Almost surely, 2^66792716900 is an apocalyptic number.

It is an amenable number.

66792716900 is an abundant number, since it is smaller than the sum of its proper divisors (111595240540).

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

66792716900 is a wasteful number, since it uses less digits than its factorization.

66792716900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339893 (or 7339886 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 66792716900 in words is "sixty-six billion, seven hundred ninety-two million, seven hundred sixteen thousand, nine hundred".