6678688896 has 192 divisors, whose sum is σ = 21667615200. Its totient is φ = 2023718400.

The previous prime is 6678688889. The next prime is 6678688937. The reversal of 6678688896 is 6988868766.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 410191 + ... + 426161.

Almost surely, 2^6678688896 is an apocalyptic number.

6678688896 is a gapful number since it is divisible by the number (66) 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 6678688896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10833807600).

6678688896 is an abundant number, since it is smaller than the sum of its proper divisors (14988926304).

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

6678688896 is a wasteful number, since it uses less digits than its factorization.

6678688896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016 (or 15987 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The square root of 6678688896 is about 81723.2457505207. The cubic root of 6678688896 is about 1883.2027134791.

The spelling of 6678688896 in words is "six billion, six hundred seventy-eight million, six hundred eighty-eight thousand, eight hundred ninety-six".