6668641104 has 80 divisors (see below), whose sum is σ = 17502302400. Its totient is φ = 2187537408.

The previous prime is 6668641079. The next prime is 6668641117. The reversal of 6668641104 is 4011468666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1781667 + ... + 1785405.

It is an arithmetic number, because the mean of its divisors is an integer number (218778780).

Almost surely, 2^6668641104 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 6668641104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8751151200).

6668641104 is an abundant number, since it is smaller than the sum of its proper divisors (10833661296).

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

6668641104 is a wasteful number, since it uses less digits than its factorization.

6668641104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332 (or 4326 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 6668641104 is about 81661.7481076667. The cubic root of 6668641104 is about 1882.2578410891.

The spelling of 6668641104 in words is "six billion, six hundred sixty-eight million, six hundred forty-one thousand, one hundred four".