6698558896 has 20 divisors (see below), whose sum is σ = 13003289512. Its totient is φ = 3342871296.

The previous prime is 6698558857. The next prime is 6698558917. The reversal of 6698558896 is 6988558966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391881 + ... + 408616.

Almost surely, 2^6698558896 is an apocalyptic number.

It is an amenable number.

6698558896 is a deficient number, since it is larger than the sum of its proper divisors (6304730616).

6698558896 is a wasteful number, since it uses less digits than its factorization.

6698558896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801028 (or 801022 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 70.

The square root of 6698558896 is about 81844.7243015700. The cubic root of 6698558896 is about 1885.0684584190.

Adding to 6698558896 its sum of digits (70), we get a palindrome (6698558966).

The spelling of 6698558896 in words is "six billion, six hundred ninety-eight million, five hundred fifty-eight thousand, eight hundred ninety-six".