165456522 has 192 divisors, whose sum is σ = 482826240. Its totient is φ = 39657600.

The previous prime is 165456509. The next prime is 165456539. The reversal of 165456522 is 225654561.

165456522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1606323 + ... + 1606425.

It is an arithmetic number, because the mean of its divisors is an integer number (2514720).

Almost surely, 2^165456522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165456522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241413120).

165456522 is an abundant number, since it is smaller than the sum of its proper divisors (317369718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165456522 is a wasteful number, since it uses less digits than its factorization.

165456522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 206 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 165456522 is about 12862.9903988147. The cubic root of 165456522 is about 548.9860348603.

The spelling of 165456522 in words is "one hundred sixty-five million, four hundred fifty-six thousand, five hundred twenty-two".