5. Write down the 0 times, 1 times, 2 times, 3 times, 4 times, 5 times, ... of the natural number 15 in order:
$$
0,15,30,45,60,75, \ldots
$$

This sequence of numbers can continue indefinitely, and each subsequent number is always larger than the previous one. Any natural number is either one of these numbers or lies between two adjacent numbers. We call this sequence a strictly increasing infinite sequence, and each number from left to right is called the first term, the second term, the third term, ..., i.e., the first term is 0, the second term is 15, the third term is 30, ..., and so on. Therefore, 2016 lies between the
term and the
term of this sequence, and the difference between the larger of these two terms and 2016 is
\begin{tabular}{l}
135 \\
136 \\
\hline
\end{tabular}