165381065133367 has 2 divisors, whose sum is σ = 165381065133368. Its totient is φ = 165381065133366.

The previous prime is 165381065133359. The next prime is 165381065133419. The reversal of 165381065133367 is 763331560183561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165381065133367 - 2³ = 165381065133359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165381065134367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82690532566683 + 82690532566684.

It is an arithmetic number, because the mean of its divisors is an integer number (82690532566684).

Almost surely, 2^{165381065133367} is an apocalyptic number.

165381065133367 is a deficient number, since it is larger than the sum of its proper divisors (1).

165381065133367 is an equidigital number, since it uses as much as digits as its factorization.

165381065133367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 165381065133367 in words is "one hundred sixty-five trillion, three hundred eighty-one billion, sixty-five million, one hundred thirty-three thousand, three hundred sixty-seven".