If you could fold a piece of paper 42 times, it would be thick enough to reach the moon. A standard sheet of paper is ~0.1 mm so 42 folds would be 0.1*(2^(42)) = 439,804,651,110 mm or over 273,000 miles. – WTF Fun Facts
Source:Will A Piece Of Paper, Folded 42 Times, Reach The Moon? (codersrevolution.com)