Create Huge Bitmap

Question

I need to create a very large bitmap with dimensions 13056 width, 14336 height. However when I do this code:

Bitmap WorldMap = new Bitmap(13056, 14336);

I receive this error: "ArgumentException was not handled: Parameter is not valid"

The reason I need to create such a large image is that I am 'stitching' alot of other images together.

Thankyou