6647107896 has 288 divisors, whose sum is σ = 22438962000. Its totient is φ = 1760901120.

The previous prime is 6647107867. The next prime is 6647107921. The reversal of 6647107896 is 6987017466.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2150320 + ... + 2153408.

Almost surely, 2^6647107896 is an apocalyptic number.

6647107896 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 6647107896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11219481000).

6647107896 is an abundant number, since it is smaller than the sum of its proper divisors (15791854104).

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

6647107896 is a wasteful number, since it uses less digits than its factorization.

6647107896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 6647107896 is about 81529.7975957257. The cubic root of 6647107896 is about 1880.2297040892.

The spelling of 6647107896 in words is "six billion, six hundred forty-seven million, one hundred seven thousand, eight hundred ninety-six".