660004466 has 16 divisors (see below), whose sum is σ = 1080401760. Its totient is φ = 299892480.

The previous prime is 660004459. The next prime is 660004489. The reversal of 660004466 is 664400066.

It is a happy number.

It is a Curzon number.

It is a zygodrome in base 10.

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, 115730 + ... + 121298.

It is an arithmetic number, because the mean of its divisors is an integer number (67525110).

Almost surely, 2^660004466 is an apocalyptic number.

660004466 is a deficient number, since it is larger than the sum of its proper divisors (420397294).

660004466 is a wasteful number, since it uses less digits than its factorization.

660004466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 660004466 is about 25690.5520765903. The cubic root of 660004466 is about 870.6607329322.

The spelling of 660004466 in words is "six hundred sixty million, four thousand, four hundred sixty-six".