6986668660 has 24 divisors (see below), whose sum is σ = 14701428000. Its totient is φ = 2789062944.

The previous prime is 6986668651. The next prime is 6986668691. The reversal of 6986668660 is 668666896.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 340054 + ... + 360013.

It is an arithmetic number, because the mean of its divisors is an integer number (612559500).

Almost surely, 2^6986668660 is an apocalyptic number.

It is an amenable number.

6986668660 is an abundant number, since it is smaller than the sum of its proper divisors (7714759340).

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

6986668660 is a wasteful number, since it uses less digits than its factorization.

6986668660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700575 (or 700573 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 61.

The square root of 6986668660 is about 83586.2946899789. The cubic root of 6986668660 is about 1911.7160331329.

The spelling of 6986668660 in words is "six billion, nine hundred eighty-six million, six hundred sixty-eight thousand, six hundred sixty".