6681835568 has 20 divisors (see below), whose sum is σ = 13158288768. Its totient is φ = 3286148160.

The previous prime is 6681835553. The next prime is 6681835679. The reversal of 6681835568 is 8655381866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422096 + ... + 3424047.

Almost surely, 2^6681835568 is an apocalyptic number.

It is an amenable number.

6681835568 is a deficient number, since it is larger than the sum of its proper divisors (6476453200).

6681835568 is a wasteful number, since it uses less digits than its factorization.

6681835568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846212 (or 6846206 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 56.

The square root of 6681835568 is about 81742.4954842951. The cubic root of 6681835568 is about 1883.4984247547.

The spelling of 6681835568 in words is "six billion, six hundred eighty-one million, eight hundred thirty-five thousand, five hundred sixty-eight".