165754446522 has 128 divisors (see below), whose sum is σ = 410531328000. Its totient is φ = 43552567296.

The previous prime is 165754446493. The next prime is 165754446523. The reversal of 165754446522 is 225644457561.

It is not an unprimeable number, because it can be changed into a prime (165754446523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13250923 + ... + 13263425.

It is an arithmetic number, because the mean of its divisors is an integer number (3207276000).

Almost surely, 2^165754446522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165754446522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205265664000).

165754446522 is an abundant number, since it is smaller than the sum of its proper divisors (244776881478).

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

165754446522 is a wasteful number, since it uses less digits than its factorization.

165754446522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020.

The product of its digits is 8064000, while the sum is 51.

The spelling of 165754446522 in words is "one hundred sixty-five billion, seven hundred fifty-four million, four hundred forty-six thousand, five hundred twenty-two".