65500555621313 has 2 divisors, whose sum is σ = 65500555621314. Its totient is φ = 65500555621312.

The previous prime is 65500555621159. The next prime is 65500555621327. The reversal of 65500555621313 is 31312655500556.

65500555621313 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., 60320821155904 + 5179734465409 = 7766648^2 + 2275903^2 .

It is a cyclic number.

It is not a de Polignac number, because 65500555621313 - 2²⁸ = 65500287185857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65500555621363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750277810656 + 32750277810657.

It is an arithmetic number, because the mean of its divisors is an integer number (32750277810657).

Almost surely, 2^{65500555621313} is an apocalyptic number.

It is an amenable number.

65500555621313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500555621313 is an equidigital number, since it uses as much as digits as its factorization.

65500555621313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025000, while the sum is 47.

The spelling of 65500555621313 in words is "sixty-five trillion, five hundred billion, five hundred fifty-five million, six hundred twenty-one thousand, three hundred thirteen".