65916313 has 2 divisors, whose sum is σ = 65916314. Its totient is φ = 65916312.

The previous prime is 65916311. The next prime is 65916353. The reversal of 65916313 is 31361956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 11923209 = 7348^2 + 3453^2 .

It is a cyclic number.

It is not a de Polignac number, because 65916313 - 2¹ = 65916311 is a prime.

Together with 65916311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65916311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32958156 + 32958157.

It is an arithmetic number, because the mean of its divisors is an integer number (32958157).

Almost surely, 2^65916313 is an apocalyptic number.

It is an amenable number.

65916313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65916313 is an equidigital number, since it uses as much as digits as its factorization.

65916313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 65916313 is about 8118.8861920832. The cubic root of 65916313 is about 403.9531221136.

The spelling of 65916313 in words is "sixty-five million, nine hundred sixteen thousand, three hundred thirteen".