Power of Two
259 = 576460752303423488
259 = 576460752303423488
576460752303423488 is even
Previous even number is 576460752303423486
Next even number is 576460752303423490
1000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000