6668328576 has 128 divisors (see below), whose sum is σ = 21800419200. Its totient is φ = 1758670848.

The previous prime is 6668328553. The next prime is 6668328599. The reversal of 6668328576 is 6758238666.

It is an interprime number because it is at equal distance from previous prime (6668328553) and next prime (6668328599).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60471 + ... + 130358.

It is an arithmetic number, because the mean of its divisors is an integer number (170315775).

Almost surely, 2^6668328576 is an apocalyptic number.

It is an amenable number.

6668328576 is an abundant number, since it is smaller than the sum of its proper divisors (15132090624).

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

6668328576 is a wasteful number, since it uses less digits than its factorization.

6668328576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190866 (or 190854 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The square root of 6668328576 is about 81659.8345332637. The cubic root of 6668328576 is about 1882.2284364244.

It can be divided in two parts, 66683 and 28576, that added together give a palindrome (95259).

The spelling of 6668328576 in words is "six billion, six hundred sixty-eight million, three hundred twenty-eight thousand, five hundred seventy-six".