218066011 has 2 divisors, whose sum is σ = 218066012. Its totient is φ = 218066010.

The previous prime is 218065999. The next prime is 218066027. The reversal of 218066011 is 110660812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218066011 - 2⁹ = 218065499 is a prime.

It is equal to p_12021883 and since 218066011 and 12021883 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (218066071) by changing a digit.

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 as a sum of consecutive naturals, namely, 109033005 + 109033006.

It is an arithmetic number, because the mean of its divisors is an integer number (109033006).

Almost surely, 2^218066011 is an apocalyptic number.

218066011 is a deficient number, since it is larger than the sum of its proper divisors (1).

218066011 is an equidigital number, since it uses as much as digits as its factorization.

218066011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 218066011 is about 14767.0583055665. The cubic root of 218066011 is about 601.9069062420.

The spelling of 218066011 in words is "two hundred eighteen million, sixty-six thousand, eleven".