172366072138276 has 27 divisors (see below), whose sum is σ = 303173215966299. Its totient is φ = 85747355978328.

The previous prime is 172366072138217. The next prime is 172366072138307. The reversal of 172366072138276 is 672831270663271.

The square root of 172366072138276 is 13128826.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5225256255 + ... + 5225289241.

Almost surely, 2^{172366072138276} is an apocalyptic number.

172366072138276 is the 13128826-th square number.

It is an amenable number.

172366072138276 is a deficient number, since it is larger than the sum of its proper divisors (130807143828023).

172366072138276 is an frugal number, since it uses more digits than its factorization.

172366072138276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66376 (or 33188 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 172366072138276 in words is "one hundred seventy-two trillion, three hundred sixty-six billion, seventy-two million, one hundred thirty-eight thousand, two hundred seventy-six".