663965014 has 8 divisors (see below), whose sum is σ = 996157440. Its totient is φ = 331912536.

The previous prime is 663964999. The next prime is 663965047. The reversal of 663965014 is 410569366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22189 + ... + 42664.

It is an arithmetic number, because the mean of its divisors is an integer number (124519680).

Almost surely, 2^663965014 is an apocalyptic number.

663965014 is a deficient number, since it is larger than the sum of its proper divisors (332192426).

663965014 is a wasteful number, since it uses less digits than its factorization.

663965014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69974.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 663965014 is about 25767.5185844505. The cubic root of 663965014 is about 872.3988115917.

The spelling of 663965014 in words is "six hundred sixty-three million, nine hundred sixty-five thousand, fourteen".