66000299 has 2 divisors, whose sum is σ = 66000300. Its totient is φ = 66000298.

The previous prime is 66000287. The next prime is 66000329. The reversal of 66000299 is 99200066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66000299 - 2⁸ = 66000043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66000229) by changing a digit.

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, 33000149 + 33000150.

It is an arithmetic number, because the mean of its divisors is an integer number (33000150).

Almost surely, 2^66000299 is an apocalyptic number.

66000299 is a deficient number, since it is larger than the sum of its proper divisors (1).

66000299 is an equidigital number, since it uses as much as digits as its factorization.

66000299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 66000299 is about 8124.0568067930. The cubic root of 66000299 is about 404.1246123294.

The spelling of 66000299 in words is "sixty-six million, two hundred ninety-nine", and thus it is an aban number.