66000329 has 2 divisors, whose sum is σ = 66000330. Its totient is φ = 66000328.

The previous prime is 66000299. The next prime is 66000331. The reversal of 66000329 is 92300066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 8543929 = 7580^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 66000329 - 2⁸ = 66000073 is a prime.

Together with 66000331, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66000298 and 66000307.

It is not a weakly prime, because it can be changed into another prime (66000349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33000164 + 33000165.

It is an arithmetic number, because the mean of its divisors is an integer number (33000165).

Almost surely, 2^66000329 is an apocalyptic number.

It is an amenable number.

66000329 is a deficient number, since it is larger than the sum of its proper divisors (1).

66000329 is an equidigital number, since it uses as much as digits as its factorization.

66000329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 66000329 is about 8124.0586531610. The cubic root of 66000329 is about 404.1246735601.

The spelling of 66000329 in words is "sixty-six million, three hundred twenty-nine", and thus it is an aban number.