666044567239 has 8 divisors (see below), whose sum is σ = 666396735680. Its totient is φ = 665692473600.

The previous prime is 666044567191. The next prime is 666044567267. The reversal of 666044567239 is 932765440666.

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 666044567239 - 2¹¹ = 666044565191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666044567299) 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, 28019119 + ... + 28042879.

It is an arithmetic number, because the mean of its divisors is an integer number (83299591960).

Almost surely, 2^666044567239 is an apocalyptic number.

666044567239 is a deficient number, since it is larger than the sum of its proper divisors (352168441).

666044567239 is a wasteful number, since it uses less digits than its factorization.

666044567239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37401.

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 666044567239 in words is "six hundred sixty-six billion, forty-four million, five hundred sixty-seven thousand, two hundred thirty-nine".