66343159 has 2 divisors, whose sum is σ = 66343160. Its totient is φ = 66343158.

The previous prime is 66343153. The next prime is 66343187. The reversal of 66343159 is 95134366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66343159 - 2⁵ = 66343127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66343153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33171579 + 33171580.

It is an arithmetic number, because the mean of its divisors is an integer number (33171580).

Almost surely, 2^66343159 is an apocalyptic number.

66343159 is a deficient number, since it is larger than the sum of its proper divisors (1).

66343159 is an equidigital number, since it uses as much as digits as its factorization.

66343159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 66343159 is about 8145.1309995604. The cubic root of 66343159 is about 404.8231895998.

The spelling of 66343159 in words is "sixty-six million, three hundred forty-three thousand, one hundred fifty-nine".