172572059601 has 64 divisors (see below), whose sum is σ = 271895500800. Its totient is φ = 107873633088.

The previous prime is 172572059579. The next prime is 172572059657. The reversal of 172572059601 is 106950275271.

172572059601 is a `hidden beast` number, since 1 + 7 + 2 + 57 + 2 + 0 + 596 + 0 + 1 = 666.

It is not a de Polignac number, because 172572059601 - 2¹⁰ = 172572058577 is a prime.

It is a super-2 number, since 2×172572059601² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172572059501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21178210 + ... + 21186356.

It is an arithmetic number, because the mean of its divisors is an integer number (4248367200).

Almost surely, 2^172572059601 is an apocalyptic number.

It is an amenable number.

172572059601 is a deficient number, since it is larger than the sum of its proper divisors (99323441199).

172572059601 is a wasteful number, since it uses less digits than its factorization.

172572059601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8595 (or 8589 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 172572059601 in words is "one hundred seventy-two billion, five hundred seventy-two million, fifty-nine thousand, six hundred one".