6480045666 has 24 divisors (see below), whose sum is σ = 14062374144. Its totient is φ = 2156588280.

The previous prime is 6480045647. The next prime is 6480045673. The reversal of 6480045666 is 6665400846.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273906 + ... + 296621.

It is an arithmetic number, because the mean of its divisors is an integer number (585932256).

Almost surely, 2^6480045666 is an apocalyptic number.

6480045666 is an abundant number, since it is smaller than the sum of its proper divisors (7582328478).

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

6480045666 is a wasteful number, since it uses less digits than its factorization.

6480045666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571166 (or 571163 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 6480045666 is about 80498.7308347156. The cubic root of 6480045666 is about 1864.3438830336.

The spelling of 6480045666 in words is "six billion, four hundred eighty million, forty-five thousand, six hundred sixty-six".