663965012 has 24 divisors (see below), whose sum is σ = 1217837376. Its totient is φ = 316139648.

The previous prime is 663964999. The next prime is 663965047. The reversal of 663965012 is 210569366.

663965012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4988 + ... + 36780.

It is an arithmetic number, because the mean of its divisors is an integer number (50743224).

Almost surely, 2^663965012 is an apocalyptic number.

It is an amenable number.

663965012 is a deficient number, since it is larger than the sum of its proper divisors (553872364).

663965012 is a wasteful number, since it uses less digits than its factorization.

663965012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32047 (or 32045 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 663965012 is about 25767.5185456419. The cubic root of 663965012 is about 872.3988107157.

The spelling of 663965012 in words is "six hundred sixty-three million, nine hundred sixty-five thousand, twelve".