656264012424 has 32 divisors (see below), whose sum is σ = 1641126736320. Its totient is φ = 218692443456.

The previous prime is 656264012359. The next prime is 656264012441. The reversal of 656264012424 is 424210462656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803044 + ... + 3971859.

It is an arithmetic number, because the mean of its divisors is an integer number (51285210510).

Almost surely, 2^656264012424 is an apocalyptic number.

It is an amenable number.

656264012424 is an abundant number, since it is smaller than the sum of its proper divisors (984862723896).

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

656264012424 is a wasteful number, since it uses less digits than its factorization.

656264012424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778429 (or 7778425 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 656264012424 in words is "six hundred fifty-six billion, two hundred sixty-four million, twelve thousand, four hundred twenty-four".