656137013433051 has 32 divisors (see below), whose sum is σ = 889513908940800. Its totient is φ = 430125089663360.

The previous prime is 656137013432947. The next prime is 656137013433089. The reversal of 656137013433051 is 150334310731656.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 656137013433051 - 2¹⁸ = 656137013170907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656137013433151) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1219137430 + ... + 1219675508.

It is an arithmetic number, because the mean of its divisors is an integer number (27797309654400).

Almost surely, 2^{656137013433051} is an apocalyptic number.

656137013433051 is a deficient number, since it is larger than the sum of its proper divisors (233376895507749).

656137013433051 is a wasteful number, since it uses less digits than its factorization.

656137013433051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553259.

The product of its (nonzero) digits is 2041200, while the sum is 48.

The spelling of 656137013433051 in words is "six hundred fifty-six trillion, one hundred thirty-seven billion, thirteen million, four hundred thirty-three thousand, fifty-one".