10656641864 has 16 divisors (see below), whose sum is σ = 21797676720. Its totient is φ = 4843928080.

The previous prime is 10656641857. The next prime is 10656641899. The reversal of 10656641864 is 46814665601.

It is a super-2 number, since 2×10656641864² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60549014 + ... + 60549189.

It is an arithmetic number, because the mean of its divisors is an integer number (1362354795).

Almost surely, 2^10656641864 is an apocalyptic number.

It is an amenable number.

10656641864 is an abundant number, since it is smaller than the sum of its proper divisors (11141034856).

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

10656641864 is a wasteful number, since it uses less digits than its factorization.

10656641864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121098220 (or 121098216 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 10656641864 in words is "ten billion, six hundred fifty-six million, six hundred forty-one thousand, eight hundred sixty-four".