6688338808 has 16 divisors (see below), whose sum is σ = 13200669000. Its totient is φ = 3168160416.

The previous prime is 6688338803. The next prime is 6688338893. The reversal of 6688338808 is 8088338866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688338803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22000963 + ... + 22001266.

Almost surely, 2^6688338808 is an apocalyptic number.

It is an amenable number.

6688338808 is a deficient number, since it is larger than the sum of its proper divisors (6512330192).

6688338808 is a wasteful number, since it uses less digits than its factorization.

6688338808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44002254 (or 44002250 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The square root of 6688338808 is about 81782.2646299306. The cubic root of 6688338808 is about 1884.1092783893.

Adding to 6688338808 its sum of digits (58), we get a palindrome (6688338866).

The spelling of 6688338808 in words is "six billion, six hundred eighty-eight million, three hundred thirty-eight thousand, eight hundred eight".