>>21171051000 Kcal impossible.
Remember;
Sugar(s) are 4Kcal/g
Pt are 4Kcal/g
Lipids 9Kcal/g
Alcohol 7Kcal/g
Do the math, every dorito weights like 1 g and its composition is 80% starch (sugar) and 20% vegetal oil.
About 5.5 Kcal/g average dorito.
There are not even more than 1000 dorito chips in one big bag.