72160051577 has 2 divisors, whose sum is σ = 72160051578. Its totient is φ = 72160051576.

The previous prime is 72160051567. The next prime is 72160051603. The reversal of 72160051577 is 77515006127.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63654785401 + 8505266176 = 252299^2 + 92224^2 .

It is a cyclic number.

It is not a de Polignac number, because 72160051577 - 2²⁴ = 72143274361 is a prime.

It is not a weakly prime, because it can be changed into another prime (72160051567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36080025788 + 36080025789.

It is an arithmetic number, because the mean of its divisors is an integer number (36080025789).

Almost surely, 2^72160051577 is an apocalyptic number.

It is an amenable number.

72160051577 is a deficient number, since it is larger than the sum of its proper divisors (1).

72160051577 is an equidigital number, since it uses as much as digits as its factorization.

72160051577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 72160051577 in words is "seventy-two billion, one hundred sixty million, fifty-one thousand, five hundred seventy-seven".