656882888670 has 192 divisors, whose sum is σ = 1771316951040. Its totient is φ = 168782745600.

The previous prime is 656882888573. The next prime is 656882888681. The reversal of 656882888670 is 76888288656.

It is a super-2 number, since 2×656882888670² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107313210 + ... + 107319330.

It is an arithmetic number, because the mean of its divisors is an integer number (9225609120).

Almost surely, 2^656882888670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656882888670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885658475520).

656882888670 is an abundant number, since it is smaller than the sum of its proper divisors (1114434062370).

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

656882888670 is a wasteful number, since it uses less digits than its factorization.

656882888670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6531 (or 6528 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 72.

The spelling of 656882888670 in words is "six hundred fifty-six billion, eight hundred eighty-two million, eight hundred eighty-eight thousand, six hundred seventy".