6568902668 has 12 divisors (see below), whose sum is σ = 11523018360. Its totient is φ = 3276611712.

The previous prime is 6568902631. The next prime is 6568902701. The reversal of 6568902668 is 8662098656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958021 + ... + 1961372.

It is an arithmetic number, because the mean of its divisors is an integer number (960251530).

Almost surely, 2^6568902668 is an apocalyptic number.

It is an amenable number.

6568902668 is a deficient number, since it is larger than the sum of its proper divisors (4954115692).

6568902668 is a wasteful number, since it uses less digits than its factorization.

6568902668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919816 (or 3919814 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 56.

The square root of 6568902668 is about 81048.7672207295. The cubic root of 6568902668 is about 1872.8267720857.

The spelling of 6568902668 in words is "six billion, five hundred sixty-eight million, nine hundred two thousand, six hundred sixty-eight".