6681007116 has 144 divisors (see below), whose sum is σ = 20186016480. Its totient is φ = 1905361920.

The previous prime is 6681007027. The next prime is 6681007171. The reversal of 6681007116 is 6117001866.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4661536 + ... + 4662968.

It is an arithmetic number, because the mean of its divisors is an integer number (140180670).

Almost surely, 2^6681007116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6681007116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10093008240).

6681007116 is an abundant number, since it is smaller than the sum of its proper divisors (13505009364).

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

6681007116 is a wasteful number, since it uses less digits than its factorization.

6681007116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 6681007116 is about 81737.4278773195. The cubic root of 6681007116 is about 1883.4205792529.

The spelling of 6681007116 in words is "six billion, six hundred eighty-one million, seven thousand, one hundred sixteen".