72667115612 has 24 divisors (see below), whose sum is σ = 156513788256. Its totient is φ = 28747430208.

The previous prime is 72667115581. The next prime is 72667115623. The reversal of 72667115612 is 21651176627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99817103 + ... + 99817830.

It is an arithmetic number, because the mean of its divisors is an integer number (6521407844).

Almost surely, 2^72667115612 is an apocalyptic number.

It is an amenable number.

72667115612 is an abundant number, since it is smaller than the sum of its proper divisors (83846672644).

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

72667115612 is a wasteful number, since it uses less digits than its factorization.

72667115612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199634957 (or 199634955 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The spelling of 72667115612 in words is "seventy-two billion, six hundred sixty-seven million, one hundred fifteen thousand, six hundred twelve".