66365339 has 2 divisors, whose sum is σ = 66365340. Its totient is φ = 66365338.

The previous prime is 66365323. The next prime is 66365353. The reversal of 66365339 is 93356366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66365339 - 2⁴ = 66365323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66365296 and 66365305.

It is not a weakly prime, because it can be changed into another prime (66367339) 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, 33182669 + 33182670.

It is an arithmetic number, because the mean of its divisors is an integer number (33182670).

Almost surely, 2^66365339 is an apocalyptic number.

66365339 is a deficient number, since it is larger than the sum of its proper divisors (1).

66365339 is an equidigital number, since it uses as much as digits as its factorization.

66365339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 41.

The square root of 66365339 is about 8146.4924353982. The cubic root of 66365339 is about 404.8682983849.

The spelling of 66365339 in words is "sixty-six million, three hundred sixty-five thousand, three hundred thirty-nine".