72220607005717 has 2 divisors, whose sum is σ = 72220607005718. Its totient is φ = 72220607005716.

The previous prime is 72220607005697. The next prime is 72220607005727. The reversal of 72220607005717 is 71750070602227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71914317813361 + 306289192356 = 8480231^2 + 553434^2 .

It is a cyclic number.

It is not a de Polignac number, because 72220607005717 - 2²⁷ = 72220472787989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72220607005727) 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 as a sum of consecutive naturals, namely, 36110303502858 + 36110303502859.

It is an arithmetic number, because the mean of its divisors is an integer number (36110303502859).

Almost surely, 2^{72220607005717} is an apocalyptic number.

It is an amenable number.

72220607005717 is a deficient number, since it is larger than the sum of its proper divisors (1).

72220607005717 is an equidigital number, since it uses as much as digits as its factorization.

72220607005717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 72220607005717 in words is "seventy-two trillion, two hundred twenty billion, six hundred seven million, five thousand, seven hundred seventeen".