172053555056 has 40 divisors (see below), whose sum is σ = 334007257584. Its totient is φ = 85858306560.

The previous prime is 172053555041. The next prime is 172053555097. The reversal of 172053555056 is 650555350271.

It is a junction number, because it is equal to n+sod(n) for n = 172053554998 and 172053555016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20330666 + ... + 20339126.

Almost surely, 2^172053555056 is an apocalyptic number.

172053555056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172053555056 is a deficient number, since it is larger than the sum of its proper divisors (161953702528).

172053555056 is a wasteful number, since it uses less digits than its factorization.

172053555056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809 (or 10803 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 44.

The spelling of 172053555056 in words is "one hundred seventy-two billion, fifty-three million, five hundred fifty-five thousand, fifty-six".