72767220516 has 27 divisors (see below), whose sum is σ = 183943454331. Its totient is φ = 24255200664.

The previous prime is 72767220499. The next prime is 72767220521. The reversal of 72767220516 is 61502276727.

The square root of 72767220516 is 269754.

It is a perfect power (a square), and thus also a powerful number.

72767220516 is a `hidden beast` number, since 72 + 7 + 67 + 2 + 2 + 0 + 516 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1596045 + ... + 1641003.

Almost surely, 2^72767220516 is an apocalyptic number.

72767220516 is the 269754-th square number.

It is an amenable number.

72767220516 is an abundant number, since it is smaller than the sum of its proper divisors (111176233815).

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

72767220516 is an frugal number, since it uses more digits than its factorization.

72767220516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89928 (or 44964 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 72767220516 in words is "seventy-two billion, seven hundred sixty-seven million, two hundred twenty thousand, five hundred sixteen".