172740514664 has 32 divisors (see below), whose sum is σ = 324324419040. Its totient is φ = 86254084800.

The previous prime is 172740514621. The next prime is 172740514669. The reversal of 172740514664 is 466415047271.

It is not an unprimeable number, because it can be changed into a prime (172740514669) 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, 28878554 + ... + 28884534.

It is an arithmetic number, because the mean of its divisors is an integer number (10135138095).

Almost surely, 2^172740514664 is an apocalyptic number.

It is an amenable number.

172740514664 is a deficient number, since it is larger than the sum of its proper divisors (151583904376).

172740514664 is a wasteful number, since it uses less digits than its factorization.

172740514664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10241 (or 10237 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 172740514664 in words is "one hundred seventy-two billion, seven hundred forty million, five hundred fourteen thousand, six hundred sixty-four".