166767445273172 has 24 divisors (see below), whose sum is σ = 303252402120192. Its totient is φ = 80159528268000.

The previous prime is 166767445273129. The next prime is 166767445273181. The reversal of 166767445273172 is 271372544767661.

166767445273172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166767445273172² (a number of 29 digits) contains 22 as substring.

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, 4453288403 + ... + 4453325850.

It is an arithmetic number, because the mean of its divisors is an integer number (12635516755008).

Almost surely, 2^{166767445273172} is an apocalyptic number.

It is an amenable number.

166767445273172 is a deficient number, since it is larger than the sum of its proper divisors (136484956847020).

166767445273172 is a wasteful number, since it uses less digits than its factorization.

166767445273172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8906614439 (or 8906614437 counting only the distinct ones).

The product of its digits is 497871360, while the sum is 68.

The spelling of 166767445273172 in words is "one hundred sixty-six trillion, seven hundred sixty-seven billion, four hundred forty-five million, two hundred seventy-three thousand, one hundred seventy-two".