656060061329 has 2 divisors, whose sum is σ = 656060061330. Its totient is φ = 656060061328.

The previous prime is 656060061277. The next prime is 656060061331. The reversal of 656060061329 is 923160060656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646298621329 + 9761440000 = 803927^2 + 98800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656060061329 is a prime.

It is a super-2 number, since 2×656060061329² (a number of 24 digits) contains 22 as substring.

Together with 656060061331, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 656060061329.

It is not a weakly prime, because it can be changed into another prime (656060061529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328030030664 + 328030030665.

It is an arithmetic number, because the mean of its divisors is an integer number (328030030665).

Almost surely, 2^656060061329 is an apocalyptic number.

It is an amenable number.

656060061329 is a deficient number, since it is larger than the sum of its proper divisors (1).

656060061329 is an equidigital number, since it uses as much as digits as its factorization.

656060061329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 656060061329 in words is "six hundred fifty-six billion, sixty million, sixty-one thousand, three hundred twenty-nine".