56664352690 has 64 divisors (see below), whose sum is σ = 113453488512. Its totient is φ = 20201126400.

The previous prime is 56664352687. The next prime is 56664352747. The reversal of 56664352690 is 9625346665.

It is a super-2 number, since 2×56664352690² (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 31 ways as a sum of consecutive naturals, for example, 10042270 + ... + 10047910.

It is an arithmetic number, because the mean of its divisors is an integer number (1772710758).

Almost surely, 2^56664352690 is an apocalyptic number.

56664352690 is an abundant number, since it is smaller than the sum of its proper divisors (56789135822).

56664352690 is a wasteful number, since it uses less digits than its factorization.

56664352690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7435.

The product of its (nonzero) digits is 6998400, while the sum is 52.

The spelling of 56664352690 in words is "fifty-six billion, six hundred sixty-four million, three hundred fifty-two thousand, six hundred ninety".