10656215012 has 6 divisors (see below), whose sum is σ = 18648376278. Its totient is φ = 5328107504.

The previous prime is 10656214991. The next prime is 10656215149. The reversal of 10656215012 is 21051265601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10182020836 + 474194176 = 100906^2 + 21776^2 .

It is a super-2 number, since 2×10656215012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332026873 + ... + 1332026880.

It is an arithmetic number, because the mean of its divisors is an integer number (3108062713).

Almost surely, 2^10656215012 is an apocalyptic number.

It is an amenable number.

10656215012 is a deficient number, since it is larger than the sum of its proper divisors (7992161266).

10656215012 is a wasteful number, since it uses less digits than its factorization.

10656215012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664053757 (or 2664053755 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 10656215012 in words is "ten billion, six hundred fifty-six million, two hundred fifteen thousand, twelve".