1.6913228459676e+20 feet equals 51,551,520,345,092,446,837,495,547,559,936 picometers.
Convert 1.6913228459676e+20 feet into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...
Convert 5.1551520345092E+31 picometers into meters, kilometers, decimeters, centimeters, milimeters, micrometers, nanometers, inches, yards, miles, hands, lightyears, astronomical units, parsecs, etc...