172315382256 has 60 divisors (see below), whose sum is σ = 485031349608. Its totient is φ = 57106438272.

The previous prime is 172315382237. The next prime is 172315382273. The reversal of 172315382256 is 652283513271.

172315382256 is a `hidden beast` number, since 1 + 7 + 2 + 3 + 15 + 382 + 256 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3433570 + ... + 3483393.

Almost surely, 2^172315382256 is an apocalyptic number.

172315382256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172315382256 is an abundant number, since it is smaller than the sum of its proper divisors (312715967352).

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

172315382256 is a wasteful number, since it uses less digits than its factorization.

172315382256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917150 (or 6917141 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 172315382256 in words is "one hundred seventy-two billion, three hundred fifteen million, three hundred eighty-two thousand, two hundred fifty-six".