16666033 has 2 divisors, whose sum is σ = 16666034. Its totient is φ = 16666032.

The previous prime is 16666019. The next prime is 16666037. The reversal of 16666033 is 33066661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 889249 = 3972^2 + 943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16666033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16665986 and 16666004.

It is not a weakly prime, because it can be changed into another prime (16666037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8333016 + 8333017.

It is an arithmetic number, because the mean of its divisors is an integer number (8333017).

Almost surely, 2^16666033 is an apocalyptic number.

It is an amenable number.

16666033 is a deficient number, since it is larger than the sum of its proper divisors (1).

16666033 is an equidigital number, since it uses as much as digits as its factorization.

16666033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 16666033 is about 4082.4052959009. The cubic root of 16666033 is about 255.4332401919.

The spelling of 16666033 in words is "sixteen million, six hundred sixty-six thousand, thirty-three".