6666147136 has 28 divisors (see below), whose sum is σ = 14430695040. Its totient is φ = 3030066560.

The previous prime is 6666147113. The next prime is 6666147167. The reversal of 6666147136 is 6317416666.

It is a congruent number.

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, 4733776 + ... + 4735183.

Almost surely, 2^6666147136 is an apocalyptic number.

It is an amenable number.

6666147136 is an abundant number, since it is smaller than the sum of its proper divisors (7764547904).

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

6666147136 is a wasteful number, since it uses less digits than its factorization.

6666147136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468982 (or 9468972 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 6666147136 is about 81646.4765681900. The cubic root of 6666147136 is about 1882.0231667845.

The spelling of 6666147136 in words is "six billion, six hundred sixty-six million, one hundred forty-seven thousand, one hundred thirty-six".