66666000299 has 2 divisors, whose sum is σ = 66666000300. Its totient is φ = 66666000298.

The previous prime is 66666000281. The next prime is 66666000337. The reversal of 66666000299 is 99200066666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66666000299 - 2²⁸ = 66397564843 is a prime.

It is not a weakly prime, because it can be changed into another prime (66666000209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33333000149 + 33333000150.

It is an arithmetic number, because the mean of its divisors is an integer number (33333000150).

Almost surely, 2^66666000299 is an apocalyptic number.

66666000299 is a deficient number, since it is larger than the sum of its proper divisors (1).

66666000299 is an equidigital number, since it uses as much as digits as its factorization.

66666000299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 66666000299 in words is "sixty-six billion, six hundred sixty-six million, two hundred ninety-nine", and thus it is an aban number.