72016722215 has 8 divisors (see below), whose sum is σ = 86472043008. Its totient is φ = 57578726880.

The previous prime is 72016722161. The next prime is 72016722247. The reversal of 72016722215 is 51222761027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72016722215 - 2²⁴ = 71999944999 is a prime.

It is a Duffinian number.

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, 4322216 + ... + 4338845.

It is an arithmetic number, because the mean of its divisors is an integer number (10809005376).

Almost surely, 2^72016722215 is an apocalyptic number.

72016722215 is a deficient number, since it is larger than the sum of its proper divisors (14455320793).

72016722215 is a wasteful number, since it uses less digits than its factorization.

72016722215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662729.

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 72016722215 in words is "seventy-two billion, sixteen million, seven hundred twenty-two thousand, two hundred fifteen".