72561176000001 has 16 divisors (see below), whose sum is σ = 115767118405120. Its totient is φ = 44653031384400.

The previous prime is 72561175999997. The next prime is 72561176000011. The reversal of 72561176000001 is 10000067116527.

It is not a de Polignac number, because 72561176000001 - 2² = 72561175999997 is a prime.

It is a super-2 number, since 2×72561176000001² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72561176000001.

It is not an unprimeable number, because it can be changed into a prime (72561176000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103363498225 + ... + 103363498926.

It is an arithmetic number, because the mean of its divisors is an integer number (7235444900320).

Almost surely, 2^{72561176000001} is an apocalyptic number.

It is an amenable number.

72561176000001 is a deficient number, since it is larger than the sum of its proper divisors (43205942405119).

72561176000001 is a wasteful number, since it uses less digits than its factorization.

72561176000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206726997173 (or 206726997167 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 72561176000001 in words is "seventy-two trillion, five hundred sixty-one billion, one hundred seventy-six million, one", and thus it is an aban number.