656060061731 has 2 divisors, whose sum is σ = 656060061732. Its totient is φ = 656060061730.

The previous prime is 656060061653. The next prime is 656060061737. The reversal of 656060061731 is 137160060656.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656060061731 is a prime.

It is a super-2 number, since 2×656060061731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (656060061737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328030030865 + 328030030866.

It is an arithmetic number, because the mean of its divisors is an integer number (328030030866).

Almost surely, 2^656060061731 is an apocalyptic number.

656060061731 is a deficient number, since it is larger than the sum of its proper divisors (1).

656060061731 is an equidigital number, since it uses as much as digits as its factorization.

656060061731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 656060061731 in words is "six hundred fifty-six billion, sixty million, sixty-one thousand, seven hundred thirty-one".