172160572452 has 48 divisors (see below), whose sum is σ = 438986597952. Its totient is φ = 52079431680.

The previous prime is 172160572447. The next prime is 172160572469. The reversal of 172160572452 is 254275061271.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054033 + ... + 1206360.

It is an arithmetic number, because the mean of its divisors is an integer number (9145554124).

Almost surely, 2^172160572452 is an apocalyptic number.

172160572452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172160572452 is an abundant number, since it is smaller than the sum of its proper divisors (266826025500).

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

172160572452 is a wasteful number, since it uses less digits than its factorization.

172160572452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260988 (or 2260986 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 172160572452 in words is "one hundred seventy-two billion, one hundred sixty million, five hundred seventy-two thousand, four hundred fifty-two".