Your wording needs some work there. If you're trying to say that the "pile" would reach 1/4 low earth orbit and cover half the continental US, you're absolutely incorrect. If you are saying it is a "pile of money" that "when laid out as a single layer can cover half of the continental US" or "when made into a single stack would reach 1/4 of the height of LEO", that would be mostly accurate. For perspective, 44 billion would be 44k briefcases, or 440 pallets. That's about 17 semi trailers (single high) or 9 trailers double-stacked. As a "pile" it could easily fit in a single Wal-mart parking lot and wouldn't even be that high. Still a lot of money though.
Edit: Actually, I don't even think the continental US number is accurate. A single bill is 16 in^2. Laid out as a single layer of single $1 bills, that covers ~7e11 in^2 which is about 175 square miles, not even 1/2 of Rhode Island.