165201652 has 48 divisors (see below), whose sum is σ = 366589440. Its totient is φ = 63266400.

The previous prime is 165201649. The next prime is 165201667. The reversal of 165201652 is 256102561.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 165201652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13627 + ... + 22717.

It is an arithmetic number, because the mean of its divisors is an integer number (7637280).

Almost surely, 2^165201652 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 165201652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183294720).

165201652 is an abundant number, since it is smaller than the sum of its proper divisors (201387788).

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

165201652 is a wasteful number, since it uses less digits than its factorization.

165201652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9172 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165201652 is about 12853.0794753631. The cubic root of 165201652 is about 548.7040031115.

Subtracting 165201652 from its reverse (256102561), we obtain a palindrome (90900909).

The spelling of 165201652 in words is "one hundred sixty-five million, two hundred one thousand, six hundred fifty-two".