66099211 has 2 divisors, whose sum is σ = 66099212. Its totient is φ = 66099210.

The previous prime is 66099203. The next prime is 66099227. The reversal of 66099211 is 11299066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66099211 - 2³ = 66099203 is a prime.

It is equal to p_3901678 and since 66099211 and 3901678 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 (66099251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33049605 + 33049606.

It is an arithmetic number, because the mean of its divisors is an integer number (33049606).

Almost surely, 2^66099211 is an apocalyptic number.

66099211 is a deficient number, since it is larger than the sum of its proper divisors (1).

66099211 is an equidigital number, since it uses as much as digits as its factorization.

66099211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 66099211 is about 8130.1421266790. The cubic root of 66099211 is about 404.3263933432.

The spelling of 66099211 in words is "sixty-six million, ninety-nine thousand, two hundred eleven".