663564914 has 16 divisors (see below), whose sum is σ = 1009659168. Its totient is φ = 327030432.

The previous prime is 663564899. The next prime is 663564931. The reversal of 663564914 is 419465366.

663564914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71489 + ... + 80235.

It is an arithmetic number, because the mean of its divisors is an integer number (63103698).

Almost surely, 2^663564914 is an apocalyptic number.

663564914 is a deficient number, since it is larger than the sum of its proper divisors (346094254).

663564914 is a wasteful number, since it uses less digits than its factorization.

663564914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9289.

The product of its digits is 466560, while the sum is 44.

The square root of 663564914 is about 25759.7537643511. The cubic root of 663564914 is about 872.2235428694.

The spelling of 663564914 in words is "six hundred sixty-three million, five hundred sixty-four thousand, nine hundred fourteen".