165216067 has 2 divisors, whose sum is σ = 165216068. Its totient is φ = 165216066.

The previous prime is 165216059. The next prime is 165216071. The reversal of 165216067 is 760612561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165216067 - 2³ = 165216059 is a prime.

It is not a weakly prime, because it can be changed into another prime (165216767) 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, 82608033 + 82608034.

It is an arithmetic number, because the mean of its divisors is an integer number (82608034).

Almost surely, 2^165216067 is an apocalyptic number.

165216067 is a deficient number, since it is larger than the sum of its proper divisors (1).

165216067 is an equidigital number, since it uses as much as digits as its factorization.

165216067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 165216067 is about 12853.6402236876. The cubic root of 165216067 is about 548.7199620684.

The spelling of 165216067 in words is "one hundred sixty-five million, two hundred sixteen thousand, sixty-seven".