656060061331 has 2 divisors, whose sum is σ = 656060061332. Its totient is φ = 656060061330.

The previous prime is 656060061329. The next prime is 656060061367. The reversal of 656060061331 is 133160060656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656060061331 - 2¹ = 656060061329 is a prime.

It is a super-2 number, since 2×656060061331² (a number of 24 digits) contains 22 as substring.

Together with 656060061329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (656060061731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328030030665 + 328030030666.

It is an arithmetic number, because the mean of its divisors is an integer number (328030030666).

Almost surely, 2^656060061331 is an apocalyptic number.

656060061331 is a deficient number, since it is larger than the sum of its proper divisors (1).

656060061331 is an equidigital number, since it uses as much as digits as its factorization.

656060061331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 656060061331 in words is "six hundred fifty-six billion, sixty million, sixty-one thousand, three hundred thirty-one".