663348773944 has 32 divisors (see below), whose sum is σ = 1250944002000. Its totient is φ = 329769100800.

The previous prime is 663348773933. The next prime is 663348773951. The reversal of 663348773944 is 449377843366.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 648082 + ... + 1321630.

Almost surely, 2^663348773944 is an apocalyptic number.

It is an amenable number.

663348773944 is a deficient number, since it is larger than the sum of its proper divisors (587595228056).

663348773944 is a wasteful number, since it uses less digits than its factorization.

663348773944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674263 (or 674259 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 64.

The spelling of 663348773944 in words is "six hundred sixty-three billion, three hundred forty-eight million, seven hundred seventy-three thousand, nine hundred forty-four".