172716555166 has 16 divisors (see below), whose sum is σ = 272402621568. Its totient is φ = 81973005400.

The previous prime is 172716555163. The next prime is 172716555173. The reversal of 172716555166 is 661555617271.

172716555166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172716555163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14324920 + ... + 14336971.

It is an arithmetic number, because the mean of its divisors is an integer number (17025163848).

Almost surely, 2^172716555166 is an apocalyptic number.

172716555166 is a deficient number, since it is larger than the sum of its proper divisors (99686066402).

172716555166 is a wasteful number, since it uses less digits than its factorization.

172716555166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28662047.

The product of its digits is 2646000, while the sum is 52.

The spelling of 172716555166 in words is "one hundred seventy-two billion, seven hundred sixteen million, five hundred fifty-five thousand, one hundred sixty-six".