Yes, 16 is a rational number. A rational number is defined as any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
In the case of 16, it can be expressed as 16/1, which clearly shows that both 16 (the numerator) and 1 (the denominator) are integers. Since the denominator is not zero, 16 meets the criteria for being a rational number.
Furthermore, all whole numbers, including positive integers like 16, are rational numbers because they can always be represented as a fraction with a denominator of 1. Thus, you can confidently say that 16 is indeed a rational number.