6668218914 has 32 divisors (see below), whose sum is σ = 15329761920. Its totient is φ = 1894190592.

The previous prime is 6668218877. The next prime is 6668218927. The reversal of 6668218914 is 4198128666.

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, 451599 + ... + 466130.

It is an arithmetic number, because the mean of its divisors is an integer number (479055060).

Almost surely, 2^6668218914 is an apocalyptic number.

6668218914 is an abundant number, since it is smaller than the sum of its proper divisors (8661543006).

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

6668218914 is a wasteful number, since it uses less digits than its factorization.

6668218914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917914.

The product of its digits is 995328, while the sum is 51.

The square root of 6668218914 is about 81659.1630743299. The cubic root of 6668218914 is about 1882.2181184932.

The spelling of 6668218914 in words is "six billion, six hundred sixty-eight million, two hundred eighteen thousand, nine hundred fourteen".