172664063375 has 16 divisors (see below), whose sum is σ = 216173249760. Its totient is φ = 137689905600.

The previous prime is 172664063323. The next prime is 172664063417. The reversal of 172664063375 is 573360466271.

It is not a de Polignac number, because 172664063375 - 2²⁴ = 172647286159 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2167445 + ... + 2245694.

It is an arithmetic number, because the mean of its divisors is an integer number (13510828110).

Almost surely, 2^172664063375 is an apocalyptic number.

172664063375 is a deficient number, since it is larger than the sum of its proper divisors (43509186385).

172664063375 is an equidigital number, since it uses as much as digits as its factorization.

172664063375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413467 (or 4413457 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 172664063375 in words is "one hundred seventy-two billion, six hundred sixty-four million, sixty-three thousand, three hundred seventy-five".