165042459159 has 4 divisors (see below), whose sum is σ = 220056612216. Its totient is φ = 110028306104.

The previous prime is 165042459103. The next prime is 165042459191. The reversal of 165042459159 is 951954240561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165042459159 - 2¹² = 165042455063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165042459359) 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 in 3 ways as a sum of consecutive naturals, for example, 27507076524 + ... + 27507076529.

It is an arithmetic number, because the mean of its divisors is an integer number (55014153054).

Almost surely, 2^165042459159 is an apocalyptic number.

165042459159 is a deficient number, since it is larger than the sum of its proper divisors (55014153057).

165042459159 is an equidigital number, since it uses as much as digits as its factorization.

165042459159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55014153056.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 165042459159 in words is "one hundred sixty-five billion, forty-two million, four hundred fifty-nine thousand, one hundred fifty-nine".