666004241 has 8 divisors (see below), whose sum is σ = 777342720. Its totient is φ = 558714528.

The previous prime is 666004159. The next prime is 666004243. The reversal of 666004241 is 142400666.

666004241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666004241 - 2¹⁴ = 665987857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666004243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011836 + ... + 1012493.

It is an arithmetic number, because the mean of its divisors is an integer number (97167840).

Almost surely, 2^666004241 is an apocalyptic number.

It is an amenable number.

666004241 is a deficient number, since it is larger than the sum of its proper divisors (111338479).

666004241 is a wasteful number, since it uses less digits than its factorization.

666004241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024383.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 666004241 is about 25807.0579687031. The cubic root of 666004241 is about 873.2910277890.

The spelling of 666004241 in words is "six hundred sixty-six million, four thousand, two hundred forty-one".