64316663 has 2 divisors, whose sum is σ = 64316664. Its totient is φ = 64316662.

The previous prime is 64316657. The next prime is 64316683. The reversal of 64316663 is 36661346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64316663 - 2⁴ = 64316647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64316683) 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, 32158331 + 32158332.

It is an arithmetic number, because the mean of its divisors is an integer number (32158332).

Almost surely, 2^64316663 is an apocalyptic number.

64316663 is a deficient number, since it is larger than the sum of its proper divisors (1).

64316663 is an equidigital number, since it uses as much as digits as its factorization.

64316663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 64316663 is about 8019.7670165660. The cubic root of 64316663 is about 400.6586295060.

The spelling of 64316663 in words is "sixty-four million, three hundred sixteen thousand, six hundred sixty-three".