165331338823087 has 2 divisors, whose sum is σ = 165331338823088. Its totient is φ = 165331338823086.

The previous prime is 165331338823061. The next prime is 165331338823129. The reversal of 165331338823087 is 780328833133561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165331338823087 - 2³⁵ = 165296979084719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165331338893087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82665669411543 + 82665669411544.

It is an arithmetic number, because the mean of its divisors is an integer number (82665669411544).

Almost surely, 2^{165331338823087} is an apocalyptic number.

165331338823087 is a deficient number, since it is larger than the sum of its proper divisors (1).

165331338823087 is an equidigital number, since it uses as much as digits as its factorization.

165331338823087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 165331338823087 in words is "one hundred sixty-five trillion, three hundred thirty-one billion, three hundred thirty-eight million, eight hundred twenty-three thousand, eighty-seven".