165222455243 has 8 divisors (see below), whose sum is σ = 174125683200. Its totient is φ = 156339958248.

The previous prime is 165222455159. The next prime is 165222455261. The reversal of 165222455243 is 342554222561.

165222455243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165222455243 - 2¹⁴ = 165222438859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165222455243.

It is not an unprimeable number, because it can be changed into a prime (165222455843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5166371 + ... + 5198252.

It is an arithmetic number, because the mean of its divisors is an integer number (21765710400).

Almost surely, 2^165222455243 is an apocalyptic number.

165222455243 is a deficient number, since it is larger than the sum of its proper divisors (8903227957).

165222455243 is a wasteful number, since it uses less digits than its factorization.

165222455243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365481.

The product of its digits is 576000, while the sum is 41.

The spelling of 165222455243 in words is "one hundred sixty-five billion, two hundred twenty-two million, four hundred fifty-five thousand, two hundred forty-three".