656213255524 has 12 divisors (see below), whose sum is σ = 1149285337200. Its totient is φ = 327846016328.

The previous prime is 656213255501. The next prime is 656213255561. The reversal of 656213255524 is 425552312656.

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, 65147194 + ... + 65157265.

It is an arithmetic number, because the mean of its divisors is an integer number (95773778100).

Almost surely, 2^656213255524 is an apocalyptic number.

It is an amenable number.

656213255524 is a deficient number, since it is larger than the sum of its proper divisors (493072081676).

656213255524 is a wasteful number, since it uses less digits than its factorization.

656213255524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130305722 (or 130305720 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 656213255524 in words is "six hundred fifty-six billion, two hundred thirteen million, two hundred fifty-five thousand, five hundred twenty-four".