66495167 has 2 divisors, whose sum is σ = 66495168. Its totient is φ = 66495166.

The previous prime is 66495161. The next prime is 66495181. The reversal of 66495167 is 76159466.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66495167 - 2⁴ = 66495151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66495161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33247583 + 33247584.

It is an arithmetic number, because the mean of its divisors is an integer number (33247584).

Almost surely, 2^66495167 is an apocalyptic number.

66495167 is a deficient number, since it is larger than the sum of its proper divisors (1).

66495167 is an equidigital number, since it uses as much as digits as its factorization.

66495167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 66495167 is about 8154.4568795230. The cubic root of 66495167 is about 405.1321359222.

The spelling of 66495167 in words is "sixty-six million, four hundred ninety-five thousand, one hundred sixty-seven".