72213641144 has 16 divisors (see below), whose sum is σ = 141287559120. Its totient is φ = 34536958720.

The previous prime is 72213641111. The next prime is 72213641179. The reversal of 72213641144 is 44114631227.

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, 196232537 + ... + 196232904.

It is an arithmetic number, because the mean of its divisors is an integer number (8830472445).

Almost surely, 2^72213641144 is an apocalyptic number.

It is an amenable number.

72213641144 is a deficient number, since it is larger than the sum of its proper divisors (69073917976).

72213641144 is a wasteful number, since it uses less digits than its factorization.

72213641144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392465470 (or 392465466 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The spelling of 72213641144 in words is "seventy-two billion, two hundred thirteen million, six hundred forty-one thousand, one hundred forty-four".