656347120774 has 16 divisors (see below), whose sum is σ = 1034129422080. Its totient is φ = 311826299400.

The previous prime is 656347120763. The next prime is 656347120783. The reversal of 656347120774 is 477021743656.

It is a congruent number.

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, 47239464 + ... + 47253355.

It is an arithmetic number, because the mean of its divisors is an integer number (64633088880).

Almost surely, 2^656347120774 is an apocalyptic number.

656347120774 is a deficient number, since it is larger than the sum of its proper divisors (377782301306).

656347120774 is a wasteful number, since it uses less digits than its factorization.

656347120774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94492995.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 656347120774 in words is "six hundred fifty-six billion, three hundred forty-seven million, one hundred twenty thousand, seven hundred seventy-four".