18066011 has 2 divisors, whose sum is σ = 18066012. Its totient is φ = 18066010.

The previous prime is 18066007. The next prime is 18066067. The reversal of 18066011 is 11066081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18066011 - 2² = 18066007 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18066071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033005 + 9033006.

It is an arithmetic number, because the mean of its divisors is an integer number (9033006).

Almost surely, 2^18066011 is an apocalyptic number.

18066011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18066011 is an equidigital number, since it uses as much as digits as its factorization.

18066011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 18066011 is about 4250.4130387528. The cubic root of 18066011 is about 262.3941148154.

The spelling of 18066011 in words is "eighteen million, sixty-six thousand, eleven".