668200733504 has 28 divisors (see below), whose sum is σ = 1327508151684. Its totient is φ = 333710490624.

The previous prime is 668200733479. The next prime is 668200733509. The reversal of 668200733504 is 405337002866.

It can be written as a sum of positive squares in 2 ways, for example, as 463216360000 + 204984373504 = 680600^2 + 452752^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668200733509) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6036539 + ... + 6146234.

Almost surely, 2^668200733504 is an apocalyptic number.

668200733504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

668200733504 is a deficient number, since it is larger than the sum of its proper divisors (659307418180).

668200733504 is a wasteful number, since it uses less digits than its factorization.

668200733504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183642 (or 12183632 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 668200733504 in words is "six hundred sixty-eight billion, two hundred million, seven hundred thirty-three thousand, five hundred four".