1.6397978740456e+20 feet equals 5,283 lightyears.
Convert 1.6397978740456e+20 feet into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, picometers, inches, yards, miles, hands, astronomical units, parsecs, etc...
Convert 5284 lightyears into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, picometers, inches, yards, miles, hands, astronomical units, parsecs, etc...