165055651115539 has 2 divisors, whose sum is σ = 165055651115540. Its totient is φ = 165055651115538.

The previous prime is 165055651115471. The next prime is 165055651115653. The reversal of 165055651115539 is 935511156550561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165055651115539 - 2¹⁵ = 165055651082771 is a prime.

It is not a weakly prime, because it can be changed into another prime (165055651119539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82527825557769 + 82527825557770.

It is an arithmetic number, because the mean of its divisors is an integer number (82527825557770).

Almost surely, 2^{165055651115539} is an apocalyptic number.

165055651115539 is a deficient number, since it is larger than the sum of its proper divisors (1).

165055651115539 is an equidigital number, since it uses as much as digits as its factorization.

165055651115539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15187500, while the sum is 58.

The spelling of 165055651115539 in words is "one hundred sixty-five trillion, fifty-five billion, six hundred fifty-one million, one hundred fifteen thousand, five hundred thirty-nine".