666024664 has 16 divisors (see below), whose sum is σ = 1279255320. Its totient is φ = 324889920.

The previous prime is 666024649. The next prime is 666024673. The reversal of 666024664 is 466420666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014954 + ... + 1015609.

Almost surely, 2^666024664 is an apocalyptic number.

It is an amenable number.

666024664 is a deficient number, since it is larger than the sum of its proper divisors (613230656).

666024664 is a wasteful number, since it uses less digits than its factorization.

666024664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030610 (or 2030606 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 666024664 is about 25807.4536519975. The cubic root of 666024664 is about 873.2999541788.

The spelling of 666024664 in words is "six hundred sixty-six million, twenty-four thousand, six hundred sixty-four".