172338626664 has 48 divisors (see below), whose sum is σ = 487043949600. Its totient is φ = 54948547104.

The previous prime is 172338626657. The next prime is 172338626701. The reversal of 172338626664 is 466626833271.

It is a self number, because there is not a number n which added to its sum of digits gives 172338626664.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52032954 + ... + 52036265.

It is an arithmetic number, because the mean of its divisors is an integer number (10146748950).

Almost surely, 2^172338626664 is an apocalyptic number.

It is an amenable number.

172338626664 is an abundant number, since it is smaller than the sum of its proper divisors (314705322936).

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

172338626664 is a wasteful number, since it uses less digits than its factorization.

172338626664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104069254 (or 104069247 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 172338626664 in words is "one hundred seventy-two billion, three hundred thirty-eight million, six hundred twenty-six thousand, six hundred sixty-four".