23557179161 has 2 divisors, whose sum is σ = 23557179162. Its totient is φ = 23557179160.

The previous prime is 23557179103. The next prime is 23557179179. The reversal of 23557179161 is 16197175532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14539777561 + 9017401600 = 120581^2 + 94960^2 .

It is a cyclic number.

It is not a de Polignac number, because 23557179161 - 2¹⁴ = 23557162777 is a prime.

It is not a weakly prime, because it can be changed into another prime (23557179101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778589580 + 11778589581.

It is an arithmetic number, because the mean of its divisors is an integer number (11778589581).

Almost surely, 2^23557179161 is an apocalyptic number.

It is an amenable number.

23557179161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23557179161 is an equidigital number, since it uses as much as digits as its factorization.

23557179161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 47.

The spelling of 23557179161 in words is "twenty-three billion, five hundred fifty-seven million, one hundred seventy-nine thousand, one hundred sixty-one".