663359646804 has 24 divisors (see below), whose sum is σ = 1597769472768. Its totient is φ = 213986982720.

The previous prime is 663359646793. The next prime is 663359646841. The reversal of 663359646804 is 408646953366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891612057 + ... + 891612800.

It is an arithmetic number, because the mean of its divisors is an integer number (66573728032).

Almost surely, 2^663359646804 is an apocalyptic number.

It is an amenable number.

663359646804 is an abundant number, since it is smaller than the sum of its proper divisors (934409825964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663359646804 is a wasteful number, since it uses less digits than its factorization.

663359646804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783224895 (or 1783224893 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 60.

The spelling of 663359646804 in words is "six hundred sixty-three billion, three hundred fifty-nine million, six hundred forty-six thousand, eight hundred four".