First, we simplify (216)32. Since 216=63, we have: (216)32=(63)32=63×32=62=36. Next, we simplify (0.16)−23. We can write 0.16 as 10016=254=(52)2. Then, (0.16)−23=(254)−23=((52)2)−23=(52)2×(−23)=(52)−3=(25)3=2353=8125. Finally, we multiply the simplified terms:
36×8125=836×125=84500=21125=562.5