666104312 has 16 divisors (see below), whose sum is σ = 1249236000. Its totient is φ = 332974720.

The previous prime is 666104297. The next prime is 666104339. The reversal of 666104312 is 213401666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45137 + ... + 58047.

It is an arithmetic number, because the mean of its divisors is an integer number (78077250).

Almost surely, 2^666104312 is an apocalyptic number.

It is an amenable number.

666104312 is a deficient number, since it is larger than the sum of its proper divisors (583131688).

666104312 is a wasteful number, since it uses less digits than its factorization.

666104312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19366 (or 19362 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 666104312 is about 25808.9967259481. The cubic root of 666104312 is about 873.3347646125.

Adding to 666104312 its reverse (213401666), we get a palindrome (879505978).

The spelling of 666104312 in words is "six hundred sixty-six million, one hundred four thousand, three hundred twelve".