16538112 has 120 divisors (see below), whose sum is σ = 49525476. Its totient is φ = 5308416.

The previous prime is 16538111. The next prime is 16538131. The reversal of 16538112 is 21183561.

16538112 is a `hidden beast` number, since 1 + 653 + 8 + 1 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15872256 + 665856 = 3984^2 + 816^2 .

It is not an unprimeable number, because it can be changed into a prime (16538111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170448 + ... + 170544.

Almost surely, 2^16538112 is an apocalyptic number.

16538112 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 16538112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24762738).

16538112 is an abundant number, since it is smaller than the sum of its proper divisors (32987364).

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

16538112 is an equidigital number, since it uses as much as digits as its factorization.

16538112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 139 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 16538112 is about 4066.7077593552. The cubic root of 16538112 is about 254.7780305988.

The spelling of 16538112 in words is "sixteen million, five hundred thirty-eight thousand, one hundred twelve".