66034259 has 2 divisors, whose sum is σ = 66034260. Its totient is φ = 66034258.

The previous prime is 66034229. The next prime is 66034261. The reversal of 66034259 is 95243066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66034259 - 2¹⁶ = 65968723 is a prime.

Together with 66034261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66034229) 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, 33017129 + 33017130.

It is an arithmetic number, because the mean of its divisors is an integer number (33017130).

Almost surely, 2^66034259 is an apocalyptic number.

66034259 is a deficient number, since it is larger than the sum of its proper divisors (1).

66034259 is an equidigital number, since it uses as much as digits as its factorization.

66034259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 66034259 is about 8126.1466267844. The cubic root of 66034259 is about 404.1939136247.

The spelling of 66034259 in words is "sixty-six million, thirty-four thousand, two hundred fifty-nine".