66165367 has 2 divisors, whose sum is σ = 66165368. Its totient is φ = 66165366.

The previous prime is 66165317. The next prime is 66165389. The reversal of 66165367 is 76356166.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66165367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66165317) 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, 33082683 + 33082684.

It is an arithmetic number, because the mean of its divisors is an integer number (33082684).

Almost surely, 2^66165367 is an apocalyptic number.

66165367 is a deficient number, since it is larger than the sum of its proper divisors (1).

66165367 is an equidigital number, since it uses as much as digits as its factorization.

66165367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 66165367 is about 8134.2096727340. The cubic root of 66165367 is about 404.4612396223.

The spelling of 66165367 in words is "sixty-six million, one hundred sixty-five thousand, three hundred sixty-seven".