640 x 39900
640 x 39900 = 25536000
Example of 640 x 39900 pixels banner dimensions.
590 x 39950 600 x 39940 610 x 39930 620 x 39920 630 x 39910
640 x 39850 640 x 39860 640 x 39870 640 x 39880 640 x 39890
640 x 39950 640 x 39940 640 x 39930 640 x 39920 640 x 39910