72660567 has 16 divisors (see below), whose sum is σ = 117234432. Its totient is φ = 39077760.

The previous prime is 72660557. The next prime is 72660587. The reversal of 72660567 is 76506627.

It is not a de Polignac number, because 72660567 - 2¹⁴ = 72644183 is a prime.

It is a super-2 number, since 2×72660567² = 10559115993522978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72660517) 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, 101409 + ... + 102122.

It is an arithmetic number, because the mean of its divisors is an integer number (7327152).

Almost surely, 2^72660567 is an apocalyptic number.

72660567 is a deficient number, since it is larger than the sum of its proper divisors (44573865).

72660567 is a wasteful number, since it uses less digits than its factorization.

72660567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203558.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 72660567 is about 8524.1167870930. The cubic root of 72660567 is about 417.2851479178.

The spelling of 72660567 in words is "seventy-two million, six hundred sixty thousand, five hundred sixty-seven".