666233606 has 8 divisors (see below), whose sum is σ = 1000911384. Its totient is φ = 332596480.

The previous prime is 666233599. The next prime is 666233611. The reversal of 666233606 is 606332666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 666233606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258560 + ... + 261123.

It is an arithmetic number, because the mean of its divisors is an integer number (125113923).

Almost surely, 2^666233606 is an apocalyptic number.

666233606 is a deficient number, since it is larger than the sum of its proper divisors (334677778).

666233606 is a wasteful number, since it uses less digits than its factorization.

666233606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520326.

The product of its (nonzero) digits is 139968, while the sum is 38.

The square root of 666233606 is about 25811.5014286267. The cubic root of 666233606 is about 873.3912670941.

The spelling of 666233606 in words is "six hundred sixty-six million, two hundred thirty-three thousand, six hundred six".