165263161465345 has 16 divisors (see below), whose sum is σ = 208859272453440. Its totient is φ = 125188597065024.

The previous prime is 165263161465331. The next prime is 165263161465439. The reversal of 165263161465345 is 543564161362561.

It is a cyclic number.

It is not a de Polignac number, because 165263161465345 - 2⁷ = 165263161465217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165263161465345.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 440667159 + ... + 441042028.

It is an arithmetic number, because the mean of its divisors is an integer number (13053704528340).

Almost surely, 2^{165263161465345} is an apocalyptic number.

It is an amenable number.

165263161465345 is a deficient number, since it is larger than the sum of its proper divisors (43596110988095).

165263161465345 is a wasteful number, since it uses less digits than its factorization.

165263161465345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881711184.

The product of its digits is 46656000, while the sum is 58.

The spelling of 165263161465345 in words is "one hundred sixty-five trillion, two hundred sixty-three billion, one hundred sixty-one million, four hundred sixty-five thousand, three hundred forty-five".