666808008 has 32 divisors (see below), whose sum is σ = 1667664960. Its totient is φ = 222183360.

The previous prime is 666808003. The next prime is 666808081. The reversal of 666808008 is 800808666.

It is not an unprimeable number, because it can be changed into a prime (666808003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100638 + ... + 107058.

It is an arithmetic number, because the mean of its divisors is an integer number (52114530).

Almost surely, 2^666808008 is an apocalyptic number.

It is an amenable number.

666808008 is an abundant number, since it is smaller than the sum of its proper divisors (1000856952).

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

666808008 is a wasteful number, since it uses less digits than its factorization.

666808008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757 (or 10753 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 666808008 is about 25822.6258928096. The cubic root of 666808008 is about 873.6421968877.

The spelling of 666808008 in words is "six hundred sixty-six million, eight hundred eight thousand, eight".