165995452 has 48 divisors (see below), whose sum is σ = 344780800. Its totient is φ = 68500080.

The previous prime is 165995441. The next prime is 165995509. The reversal of 165995452 is 254599561.

165995452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 834049 + ... + 834247.

Almost surely, 2^165995452 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 165995452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172390400).

165995452 is an abundant number, since it is smaller than the sum of its proper divisors (178785348).

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

165995452 is an equidigital number, since it uses as much as digits as its factorization.

165995452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 239 counting only the distinct ones).

The product of its digits is 486000, while the sum is 46.

The square root of 165995452 is about 12883.9222288867. The cubic root of 165995452 is about 549.5814468487.

The spelling of 165995452 in words is "one hundred sixty-five million, nine hundred ninety-five thousand, four hundred fifty-two".