66536329 has 2 divisors, whose sum is σ = 66536330. Its totient is φ = 66536328.

The previous prime is 66536297. The next prime is 66536383. The reversal of 66536329 is 92363566.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66455104 + 81225 = 8152^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 66536329 - 2⁵ = 66536297 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66536291 and 66536300.

It is not a weakly prime, because it can be changed into another prime (66531329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33268164 + 33268165.

It is an arithmetic number, because the mean of its divisors is an integer number (33268165).

Almost surely, 2^66536329 is an apocalyptic number.

It is an amenable number.

66536329 is a deficient number, since it is larger than the sum of its proper divisors (1).

66536329 is an equidigital number, since it uses as much as digits as its factorization.

66536329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The square root of 66536329 is about 8156.9803849219. The cubic root of 66536329 is about 405.2157139724.

The spelling of 66536329 in words is "sixty-six million, five hundred thirty-six thousand, three hundred twenty-nine".