72659816662 has 32 divisors (see below), whose sum is σ = 112018443264. Its totient is φ = 35330649600.

The previous prime is 72659816657. The next prime is 72659816683. The reversal of 72659816662 is 26661895627.

It is a junction number, because it is equal to n+sod(n) for n = 72659816597 and 72659816606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19791087 + ... + 19794757.

It is an arithmetic number, because the mean of its divisors is an integer number (3500576352).

Almost surely, 2^72659816662 is an apocalyptic number.

72659816662 is a deficient number, since it is larger than the sum of its proper divisors (39358626602).

72659816662 is a wasteful number, since it uses less digits than its factorization.

72659816662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004.

The product of its digits is 13063680, while the sum is 58.

The spelling of 72659816662 in words is "seventy-two billion, six hundred fifty-nine million, eight hundred sixteen thousand, six hundred sixty-two".