6666008000 has 56 divisors (see below), whose sum is σ = 16508388624. Its totient is φ = 2666400000.

The previous prime is 6666007991. The next prime is 6666008017. The reversal of 6666008000 is 8006666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408626 + ... + 424625.

It is an arithmetic number, because the mean of its divisors is an integer number (294792654).

Almost surely, 2^6666008000 is an apocalyptic number.

It is an amenable number.

6666008000 is an abundant number, since it is smaller than the sum of its proper divisors (9842380624).

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

6666008000 is an equidigital number, since it uses as much as digits as its factorization.

6666008000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833278 (or 833258 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6666008000 is about 81645.6245000306. The cubic root of 6666008000 is about 1882.0100728142.

The spelling of 6666008000 in words is "six billion, six hundred sixty-six million, eight thousand".