666604704337 has 16 divisors (see below), whose sum is σ = 824362096320. Its totient is φ = 529947057600.

The previous prime is 666604704323. The next prime is 666604704343. The reversal of 666604704337 is 733407406666.

It is not a de Polignac number, because 666604704337 - 2¹⁹ = 666604180049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666604704307) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 122670214 + ... + 122675647.

It is an arithmetic number, because the mean of its divisors is an integer number (51522631020).

Almost surely, 2^666604704337 is an apocalyptic number.

It is an amenable number.

666604704337 is a deficient number, since it is larger than the sum of its proper divisors (157757391983).

666604704337 is a wasteful number, since it uses less digits than its factorization.

666604704337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245345904.

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 666604704337 in words is "six hundred sixty-six billion, six hundred four million, seven hundred four thousand, three hundred thirty-seven".