6685688964336 has 80 divisors (see below), whose sum is σ = 18623806333440. Its totient is φ = 2059775792640.

The previous prime is 6685688964289. The next prime is 6685688964373. The reversal of 6685688964336 is 6334698865866.

It is a congruent number.

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, 89362600 + ... + 89437383.

It is an arithmetic number, because the mean of its divisors is an integer number (232797579168).

Almost surely, 2^{6685688964336} is an apocalyptic number.

It is an amenable number.

6685688964336 is an abundant number, since it is smaller than the sum of its proper divisors (11938117369104).

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

6685688964336 is a wasteful number, since it uses less digits than its factorization.

6685688964336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178800054 (or 178800048 counting only the distinct ones).

The product of its digits is 6449725440, while the sum is 78.

The spelling of 6685688964336 in words is "six trillion, six hundred eighty-five billion, six hundred eighty-eight million, nine hundred sixty-four thousand, three hundred thirty-six".