6688910616 has 64 divisors (see below), whose sum is σ = 17186813280. Its totient is φ = 2167787520.

The previous prime is 6688910597. The next prime is 6688910647. The reversal of 6688910616 is 6160198866.

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, 2198056 + ... + 2201096.

Almost surely, 2^6688910616 is an apocalyptic number.

It is an amenable number.

6688910616 is an abundant number, since it is smaller than the sum of its proper divisors (10497902664).

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

6688910616 is a wasteful number, since it uses less digits than its factorization.

6688910616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564 (or 5560 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 6688910616 is about 81785.7604721017. The cubic root of 6688910616 is about 1884.1629697512.

The spelling of 6688910616 in words is "six billion, six hundred eighty-eight million, nine hundred ten thousand, six hundred sixteen".