72220317082159 has 2 divisors, whose sum is σ = 72220317082160. Its totient is φ = 72220317082158.

The previous prime is 72220317082129. The next prime is 72220317082169. The reversal of 72220317082159 is 95128071302227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72220317082159 - 2¹³ = 72220317073967 is a prime.

It is a super-2 number, since 2×72220317082159² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72220317082129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36110158541079 + 36110158541080.

It is an arithmetic number, because the mean of its divisors is an integer number (36110158541080).

Almost surely, 2^{72220317082159} is an apocalyptic number.

72220317082159 is a deficient number, since it is larger than the sum of its proper divisors (1).

72220317082159 is an equidigital number, since it uses as much as digits as its factorization.

72220317082159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 72220317082159 in words is "seventy-two trillion, two hundred twenty billion, three hundred seventeen million, eighty-two thousand, one hundred fifty-nine".