6681113344 has 36 divisors (see below), whose sum is σ = 13661421480. Its totient is φ = 3259074560.

The previous prime is 6681113333. The next prime is 6681113371. The reversal of 6681113344 is 4433111866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307774 + ... + 328765.

It is an arithmetic number, because the mean of its divisors is an integer number (379483930).

Almost surely, 2^6681113344 is an apocalyptic number.

6681113344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6681113344 is an abundant number, since it is smaller than the sum of its proper divisors (6980308136).

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

6681113344 is an equidigital number, since it uses as much as digits as its factorization.

6681113344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636596 (or 636582 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 6681113344 is about 81738.0776872077. The cubic root of 6681113344 is about 1883.4305613278.

The spelling of 6681113344 in words is "six billion, six hundred eighty-one million, one hundred thirteen thousand, three hundred forty-four".