65313596917 has 2 divisors, whose sum is σ = 65313596918. Its totient is φ = 65313596916.

The previous prime is 65313596779. The next prime is 65313596969. The reversal of 65313596917 is 71969531356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36345897316 + 28967699601 = 190646^2 + 170199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65313596917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65313596717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32656798458 + 32656798459.

It is an arithmetic number, because the mean of its divisors is an integer number (32656798459).

Almost surely, 2^65313596917 is an apocalyptic number.

It is an amenable number.

65313596917 is a deficient number, since it is larger than the sum of its proper divisors (1).

65313596917 is an equidigital number, since it uses as much as digits as its factorization.

65313596917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4592700, while the sum is 55.

The spelling of 65313596917 in words is "sixty-five billion, three hundred thirteen million, five hundred ninety-six thousand, nine hundred seventeen".