165144022205252 has 24 divisors (see below), whose sum is σ = 293996168822496. Its totient is φ = 81153110634048.

The previous prime is 165144022205213. The next prime is 165144022205369. The reversal of 165144022205252 is 252502220441561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999143018 + ... + 999308289.

It is an arithmetic number, because the mean of its divisors is an integer number (12249840367604).

Almost surely, 2^{165144022205252} is an apocalyptic number.

It is an amenable number.

165144022205252 is a deficient number, since it is larger than the sum of its proper divisors (128852146617244).

165144022205252 is a wasteful number, since it uses less digits than its factorization.

165144022205252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998451667 (or 1998451665 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 165144022205252 in words is "one hundred sixty-five trillion, one hundred forty-four billion, twenty-two million, two hundred five thousand, two hundred fifty-two".