lol. 631 miles... earth to the moon and back 14 times?! that there is some fucked up math and distance calculation. even if you use $1 bills and add 2 zeros to the end of that number... so, 63,000 or if you use the first post above... 67,000... you still only about 14% of the way there. still. that's a big stack of bills.
ok. i hit pause and did some actual math. 100 $1 bills is .43 inches X 10,000,000,000 (1 trillion divided by 100) = 4,300,000,000 inches divided by 63,360 inches/mile = 67,866.16161616162 miles... to be exact.