6660442604 has 12 divisors (see below), whose sum is σ = 11663839824. Its totient is φ = 3327916944.

The previous prime is 6660442561. The next prime is 6660442619. The reversal of 6660442604 is 4062440666.

It is a super-2 number, since 2×6660442604² = 88722991362356601632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569579 + ... + 581154.

It is an arithmetic number, because the mean of its divisors is an integer number (971986652).

Almost surely, 2^6660442604 is an apocalyptic number.

It is an amenable number.

6660442604 is a deficient number, since it is larger than the sum of its proper divisors (5003397220).

6660442604 is a wasteful number, since it uses less digits than its factorization.

6660442604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152184 (or 1152182 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 6660442604 is about 81611.5347484656. The cubic root of 6660442604 is about 1881.4861686722.

The spelling of 6660442604 in words is "six billion, six hundred sixty million, four hundred forty-two thousand, six hundred four".