6698558966 has 16 divisors (see below), whose sum is σ = 11069809488. Its totient is φ = 3014652000.

The previous prime is 6698558917. The next prime is 6698558981.

6698558966 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6698558896 and 6698558905.

It is a congruent number.

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, 1505105 + ... + 1509548.

It is an arithmetic number, because the mean of its divisors is an integer number (691863093).

Almost surely, 2^6698558966 is an apocalyptic number.

6698558966 is a deficient number, since it is larger than the sum of its proper divisors (4371250522).

6698558966 is a wasteful number, since it uses less digits than its factorization.

6698558966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014767.

The product of its digits is 167961600, while the sum is 68.

The square root of 6698558966 is about 81844.7247292090. The cubic root of 6698558966 is about 1885.0684649853.

The spelling of 6698558966 in words is "six billion, six hundred ninety-eight million, five hundred fifty-eight thousand, nine hundred sixty-six".