666384627233 has 8 divisors (see below), whose sum is σ = 720863125248. Its totient is φ = 612365863824.

The previous prime is 666384627217. The next prime is 666384627287. The reversal of 666384627233 is 332726483666.

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

It is not a de Polignac number, because 666384627233 - 2⁴ = 666384627217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666384624233) 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, 114930635 + ... + 114936432.

It is an arithmetic number, because the mean of its divisors is an integer number (90107890656).

Almost surely, 2^666384627233 is an apocalyptic number.

It is an amenable number.

666384627233 is a deficient number, since it is larger than the sum of its proper divisors (54478498015).

666384627233 is a wasteful number, since it uses less digits than its factorization.

666384627233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229867303.

The product of its digits is 31352832, while the sum is 56.

The spelling of 666384627233 in words is "six hundred sixty-six billion, three hundred eighty-four million, six hundred twenty-seven thousand, two hundred thirty-three".