Congratulation, Jenny! In honor of your accomplishment we hereby dub "16091" and its ilk "Pinwheel Numbers"! Imagine sticking a pin through the "0" in "16091" and giving it a good spin. No matter what orientation it winds up in it's always going to say "16091"!

I calculate MOAB's next two Pinwheel Number to be "18081" and "19061",followed by a dearth of such until "60009" comes around. But take heart because the sixty-thousands will be loaded with them! And at current posting rates we only have ten years until post #60,000 gets here!