165168119 has 2 divisors, whose sum is σ = 165168120. Its totient is φ = 165168118.

The previous prime is 165168109. The next prime is 165168161. The reversal of 165168119 is 911861561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165168119 - 2¹⁶ = 165102583 is a prime.

It is a super-2 number, since 2×165168119² = 54561015067996322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165168109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82584059 + 82584060.

It is an arithmetic number, because the mean of its divisors is an integer number (82584060).

Almost surely, 2^165168119 is an apocalyptic number.

165168119 is a deficient number, since it is larger than the sum of its proper divisors (1).

165168119 is an equidigital number, since it uses as much as digits as its factorization.

165168119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 38.

The square root of 165168119 is about 12851.7749357822. The cubic root of 165168119 is about 548.6668748782. Note that the first 3 decimals are identical.

The spelling of 165168119 in words is "one hundred sixty-five million, one hundred sixty-eight thousand, one hundred nineteen".