317956368656 has 10 divisors (see below), whose sum is σ = 616040464302. Its totient is φ = 158978184320.

The previous prime is 317956368607. The next prime is 317956368671. The reversal of 317956368656 is 656863659713.

It can be written as a sum of positive squares in only one way, i.e., 243108163600 + 74848205056 = 493060^2 + 273584^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317956368592 and 317956368601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9936136505 + ... + 9936136536.

Almost surely, 2^317956368656 is an apocalyptic number.

It is an amenable number.

317956368656 is a deficient number, since it is larger than the sum of its proper divisors (298084095646).

317956368656 is a wasteful number, since it uses less digits than its factorization.

317956368656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19872273049 (or 19872273043 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 65.

The spelling of 317956368656 in words is "three hundred seventeen billion, nine hundred fifty-six million, three hundred sixty-eight thousand, six hundred fifty-six".