6688885504 has 72 divisors (see below), whose sum is σ = 15487044608. Its totient is φ = 2823828480.

The previous prime is 6688885421. The next prime is 6688885559. The reversal of 6688885504 is 4055888866.

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, 92209 + ... + 147919.

Almost surely, 2^6688885504 is an apocalyptic number.

6688885504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6688885504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7743522304).

6688885504 is an abundant number, since it is smaller than the sum of its proper divisors (8798159104).

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

6688885504 is an equidigital number, since it uses as much as digits as its factorization.

6688885504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55801 (or 55787 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 58.

The square root of 6688885504 is about 81785.6069489002. The cubic root of 6688885504 is about 1884.1606118605.

The spelling of 6688885504 in words is "six billion, six hundred eighty-eight million, eight hundred eighty-five thousand, five hundred four".