6688795500 has 72 divisors (see below), whose sum is σ = 21100934400. Its totient is φ = 1783677600.

The previous prime is 6688795493. The next prime is 6688795543. The reversal of 6688795500 is 55978866.

6688795500 is a `hidden beast` number, since 6 + 6 + 8 + 87 + 9 + 550 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738700 + ... + 747699.

Almost surely, 2^6688795500 is an apocalyptic number.

6688795500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6688795500 is an abundant number, since it is smaller than the sum of its proper divisors (14412138900).

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

6688795500 is a wasteful number, since it uses less digits than its factorization.

6688795500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486424 (or 1486409 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The square root of 6688795500 is about 81785.0567035323. The cubic root of 6688795500 is about 1884.1521608885.

The spelling of 6688795500 in words is "six billion, six hundred eighty-eight million, seven hundred ninety-five thousand, five hundred".