6896660644 has 48 divisors (see below), whose sum is σ = 12608386560. Its totient is φ = 3297127680.

The previous prime is 6896660633. The next prime is 6896660677. The reversal of 6896660644 is 4460666986.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8338959 + ... + 8339785.

It is an arithmetic number, because the mean of its divisors is an integer number (262674720).

Almost surely, 2^6896660644 is an apocalyptic number.

It is an amenable number.

6896660644 is a deficient number, since it is larger than the sum of its proper divisors (5711725916).

6896660644 is a wasteful number, since it uses less digits than its factorization.

6896660644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 55.

The square root of 6896660644 is about 83046.1356355610. The cubic root of 6896660644 is about 1903.4710919526.

The spelling of 6896660644 in words is "six billion, eight hundred ninety-six million, six hundred sixty thousand, six hundred forty-four".