165922452 has 48 divisors (see below), whose sum is σ = 433592320. Its totient is φ = 54867456.

The previous prime is 165922451. The next prime is 165922457. The reversal of 165922452 is 254229561.

165922452 is a `hidden beast` number, since 16 + 592 + 2 + 4 + 52 = 666.

165922452 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165922451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7668 + ... + 19764.

Almost surely, 2^165922452 is an apocalyptic number.

165922452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165922452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216796160).

165922452 is an abundant number, since it is smaller than the sum of its proper divisors (267669868).

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

165922452 is a wasteful number, since it uses less digits than its factorization.

165922452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12237 (or 12229 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 165922452 is about 12881.0889291240. The cubic root of 165922452 is about 549.5008716930.

It can be divided in two parts, 16592 and 2452, that added together give a square (19044 = 138²).

The spelling of 165922452 in words is "one hundred sixty-five million, nine hundred twenty-two thousand, four hundred fifty-two".