65313451663 has 2 divisors, whose sum is σ = 65313451664. Its totient is φ = 65313451662.

The previous prime is 65313451657. The next prime is 65313451717. The reversal of 65313451663 is 36615431356.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65313451663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65313451613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32656725831 + 32656725832.

It is an arithmetic number, because the mean of its divisors is an integer number (32656725832).

Almost surely, 2^65313451663 is an apocalyptic number.

65313451663 is a deficient number, since it is larger than the sum of its proper divisors (1).

65313451663 is an equidigital number, since it uses as much as digits as its factorization.

65313451663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 43.

The spelling of 65313451663 in words is "sixty-five billion, three hundred thirteen million, four hundred fifty-one thousand, six hundred sixty-three".