Error "Not valid tcp port"

Hi, I've been asked to create some vips on the LTM by our application team. On the vip it uses tcp port 50066 and on the pool member side it uses tcp port 80066. When trying to create the pool members using out range port 80066 i get the error "Must be a valid port". I just wanted to confirm that I cannot use port 80066 before advising the Apps team. Version is BIG-IP 11.2.1 Build 1323.0 Hotfix HF15 Thanks.