656624022 has 16 divisors (see below), whose sum is σ = 1328004720. Its totient is φ = 216415232.

The previous prime is 656623999. The next prime is 656624027. The reversal of 656624022 is 220426656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656624027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614283 + ... + 615350.

It is an arithmetic number, because the mean of its divisors is an integer number (83000295).

Almost surely, 2^656624022 is an apocalyptic number.

656624022 is an abundant number, since it is smaller than the sum of its proper divisors (671380698).

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

656624022 is a wasteful number, since it uses less digits than its factorization.

656624022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229727.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 656624022 is about 25624.6760369765. The cubic root of 656624022 is about 869.1717232561.

The spelling of 656624022 in words is "six hundred fifty-six million, six hundred twenty-four thousand, twenty-two".