165502112 has 48 divisors (see below), whose sum is σ = 343284480. Its totient is φ = 78388992.

The previous prime is 165502111. The next prime is 165502133. The reversal of 165502112 is 211205561.

It is a happy number.

165502112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (165502111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79193 + ... + 81255.

It is an arithmetic number, because the mean of its divisors is an integer number (7151760).

Almost surely, 2^165502112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165502112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171642240).

165502112 is an abundant number, since it is smaller than the sum of its proper divisors (177782368).

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

165502112 is a wasteful number, since it uses less digits than its factorization.

165502112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 165502112 is about 12864.7624152178. The cubic root of 165502112 is about 549.0364528888.

Adding to 165502112 its reverse (211205561), we get a palindrome (376707673).

The spelling of 165502112 in words is "one hundred sixty-five million, five hundred two thousand, one hundred twelve".