72365859811641 has 24 divisors (see below), whose sum is σ = 107029851100480. Its totient is φ = 43455728970720.

The previous prime is 72365859811607. The next prime is 72365859811669. The reversal of 72365859811641 is 14611895856327.

It is not a de Polignac number, because 72365859811641 - 2⁷ = 72365859811513 is a prime.

It is a super-2 number, since 2×72365859811641² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72365859811741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 914432845 + ... + 914511978.

Almost surely, 2^{72365859811641} is an apocalyptic number.

It is an amenable number.

72365859811641 is a deficient number, since it is larger than the sum of its proper divisors (34663991288839).

72365859811641 is a wasteful number, since it uses less digits than its factorization.

72365859811641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828944957 (or 1828944946 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 66.

The spelling of 72365859811641 in words is "seventy-two trillion, three hundred sixty-five billion, eight hundred fifty-nine million, eight hundred eleven thousand, six hundred forty-one".