656480664222 has 32 divisors (see below), whose sum is σ = 1334989138560. Its totient is φ = 215158295520.

The previous prime is 656480664209. The next prime is 656480664239. The reversal of 656480664222 is 222466084656.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 635913 + ... + 1310475.

It is an arithmetic number, because the mean of its divisors is an integer number (41718410580).

Almost surely, 2^656480664222 is an apocalyptic number.

656480664222 is an abundant number, since it is smaller than the sum of its proper divisors (678508474338).

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

656480664222 is a wasteful number, since it uses less digits than its factorization.

656480664222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677288.

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 656480664222 in words is "six hundred fifty-six billion, four hundred eighty million, six hundred sixty-four thousand, two hundred twenty-two".