666033748 has 6 divisors (see below), whose sum is σ = 1165559066. Its totient is φ = 333016872.

The previous prime is 666033689. The next prime is 666033773. The reversal of 666033748 is 847330666.

It can be written as a sum of positive squares in only one way, i.e., 622103364 + 43930384 = 24942^2 + 6628^2 .

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 as a sum of consecutive naturals, namely, 83254215 + ... + 83254222.

Almost surely, 2^666033748 is an apocalyptic number.

It is an amenable number.

666033748 is a deficient number, since it is larger than the sum of its proper divisors (499525318).

666033748 is a wasteful number, since it uses less digits than its factorization.

666033748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166508441 (or 166508439 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 666033748 is about 25807.6296470637. The cubic root of 666033748 is about 873.3039245126.

The spelling of 666033748 in words is "six hundred sixty-six million, thirty-three thousand, seven hundred forty-eight".