656714517161 has 2 divisors, whose sum is σ = 656714517162. Its totient is φ = 656714517160.

The previous prime is 656714517157. The next prime is 656714517163. The reversal of 656714517161 is 161715417656.

656714517161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655421395561 + 1293121600 = 809581^2 + 35960^2 .

It is a cyclic number.

It is not a de Polignac number, because 656714517161 - 2² = 656714517157 is a prime.

Together with 656714517163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (656714517163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328357258580 + 328357258581.

It is an arithmetic number, because the mean of its divisors is an integer number (328357258581).

Almost surely, 2^656714517161 is an apocalyptic number.

It is an amenable number.

656714517161 is a deficient number, since it is larger than the sum of its proper divisors (1).

656714517161 is an equidigital number, since it uses as much as digits as its factorization.

656714517161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 50.

The spelling of 656714517161 in words is "six hundred fifty-six billion, seven hundred fourteen million, five hundred seventeen thousand, one hundred sixty-one".