172716555172 has 12 divisors (see below), whose sum is σ = 345433110400. Its totient is φ = 74021380776.

The previous prime is 172716555163. The next prime is 172716555173. The reversal of 172716555172 is 271555617271.

172716555172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

172716555172 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (172716555173) 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, 3084224172 + ... + 3084224227.

Almost surely, 2^172716555172 is an apocalyptic number.

It is an amenable number.

172716555172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

172716555172 is a wasteful number, since it uses less digits than its factorization.

172716555172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168448410 (or 6168448408 counting only the distinct ones).

The product of its digits is 1029000, while the sum is 49.

The spelling of 172716555172 in words is "one hundred seventy-two billion, seven hundred sixteen million, five hundred fifty-five thousand, one hundred seventy-two".