72216916715 has 8 divisors (see below), whose sum is σ = 86664556368. Its totient is φ = 57770695840.

The previous prime is 72216916711. The next prime is 72216916753. The reversal of 72216916715 is 51761961227.

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

It is not a de Polignac number, because 72216916715 - 2² = 72216916711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72216916715.

It is not an unprimeable number, because it can be changed into a prime (72216916711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 239297 + ... + 449106.

It is an arithmetic number, because the mean of its divisors is an integer number (10833069546).

Almost surely, 2^72216916715 is an apocalyptic number.

72216916715 is a deficient number, since it is larger than the sum of its proper divisors (14447639653).

72216916715 is a wasteful number, since it uses less digits than its factorization.

72216916715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709389.

The product of its digits is 317520, while the sum is 47.

The spelling of 72216916715 in words is "seventy-two billion, two hundred sixteen million, nine hundred sixteen thousand, seven hundred fifteen".