172656550460 has 12 divisors (see below), whose sum is σ = 362578756008. Its totient is φ = 69062620176.

The previous prime is 172656550459. The next prime is 172656550477. The reversal of 172656550460 is 64055656271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4316413742 + ... + 4316413781.

It is an arithmetic number, because the mean of its divisors is an integer number (30214896334).

Almost surely, 2^172656550460 is an apocalyptic number.

172656550460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172656550460 is an abundant number, since it is smaller than the sum of its proper divisors (189922205548).

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

172656550460 is a wasteful number, since it uses less digits than its factorization.

172656550460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632827532 (or 8632827530 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 172656550460 in words is "one hundred seventy-two billion, six hundred fifty-six million, five hundred fifty thousand, four hundred sixty".