6668602666828 has 24 divisors (see below), whose sum is σ = 12052267819200. Its totient is φ = 3226691791488.

The previous prime is 6668602666777. The next prime is 6668602666841. The reversal of 6668602666828 is 8286662068666.

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, 199260183 + ... + 199293646.

It is an arithmetic number, because the mean of its divisors is an integer number (502177825800).

Almost surely, 2^{6668602666828} is an apocalyptic number.

It is an amenable number.

6668602666828 is a deficient number, since it is larger than the sum of its proper divisors (5383665152372).

6668602666828 is a wasteful number, since it uses less digits than its factorization.

6668602666828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398553969 (or 398553967 counting only the distinct ones).

The product of its (nonzero) digits is 573308928, while the sum is 70.

The spelling of 6668602666828 in words is "six trillion, six hundred sixty-eight billion, six hundred two million, six hundred sixty-six thousand, eight hundred twenty-eight".