9663866568 has 64 divisors (see below), whose sum is σ = 26992492800. Its totient is φ = 3203478720.

The previous prime is 9663866539. The next prime is 9663866573. The reversal of 9663866568 is 8656683669.

9663866568 is a `hidden beast` number, since 9 + 6 + 6 + 3 + 8 + 66 + 568 = 666.

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 15 ways as a sum of consecutive naturals, for example, 84496 + ... + 162687.

It is an arithmetic number, because the mean of its divisors is an integer number (421757700).

Almost surely, 2^9663866568 is an apocalyptic number.

It is an amenable number.

9663866568 is an abundant number, since it is smaller than the sum of its proper divisors (17328626232).

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

9663866568 is a wasteful number, since it uses less digits than its factorization.

9663866568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247379 (or 247369 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The square root of 9663866568 is about 98304.9671583283. The cubic root of 9663866568 is about 2130.0198054100.

The spelling of 9663866568 in words is "nine billion, six hundred sixty-three million, eight hundred sixty-six thousand, five hundred sixty-eight".