172163056 has 40 divisors (see below), whose sum is σ = 367598000. Its totient is φ = 77607936.

The previous prime is 172163039. The next prime is 172163077. The reversal of 172163056 is 650361271.

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, 681 + ... + 18568.

It is an arithmetic number, because the mean of its divisors is an integer number (9189950).

Almost surely, 2^172163056 is an apocalyptic number.

172163056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172163056 is an abundant number, since it is smaller than the sum of its proper divisors (195434944).

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

172163056 is a wasteful number, since it uses less digits than its factorization.

172163056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19313 (or 19307 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 172163056 is about 13121.0920277239. The cubic root of 172163056 is about 556.3054581579.

The spelling of 172163056 in words is "one hundred seventy-two million, one hundred sixty-three thousand, fifty-six".