The real number - 16 belongs to which sets of numbers?

I'm pretty Shure its rational

Counting numbers or natural numbes are like 1,2,3,4,5,6, etc

whole numbers include counting numbers, but with 0, so 0,1,2,3,4, 5, etc

integers include the negatives, so - 4,-3,-2,-1,0,1,2,3,4, etc

rational numbers are numbers that can be written in form a/b where a and b are integers and b≠0

irrational numbers can't be written as a rational numer

so - 16 is an integer and ratinoal number