656363864 has 16 divisors (see below), whose sum is σ = 1325350320. Its totient is φ = 302937120.

The previous prime is 656363861. The next prime is 656363867. The reversal of 656363864 is 468363656.

656363864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (656363861) and next prime (656363867).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656363861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155492 + ... + 3155699.

It is an arithmetic number, because the mean of its divisors is an integer number (82834395).

Almost surely, 2^656363864 is an apocalyptic number.

It is an amenable number.

656363864 is an abundant number, since it is smaller than the sum of its proper divisors (668986456).

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

656363864 is a wasteful number, since it uses less digits than its factorization.

656363864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311210 (or 6311206 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 47.

The square root of 656363864 is about 25619.5992162251. The cubic root of 656363864 is about 869.0569179085.

The spelling of 656363864 in words is "six hundred fifty-six million, three hundred sixty-three thousand, eight hundred sixty-four".