663307916 has 6 divisors (see below), whose sum is σ = 1160788860. Its totient is φ = 331653956.

The previous prime is 663307907. The next prime is 663307943. The reversal of 663307916 is 619703366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82913486 + ... + 82913493.

It is an arithmetic number, because the mean of its divisors is an integer number (193464810).

Almost surely, 2^663307916 is an apocalyptic number.

It is an amenable number.

663307916 is a deficient number, since it is larger than the sum of its proper divisors (497480944).

663307916 is a wasteful number, since it uses less digits than its factorization.

663307916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165826983 (or 165826981 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 663307916 is about 25754.7649183603. The cubic root of 663307916 is about 872.1109245726.

The spelling of 663307916 in words is "six hundred sixty-three million, three hundred seven thousand, nine hundred sixteen".