There is no particular name for a female possum.
A female leadbeater's possum has four mammae.
A baby possum is called a joey.
The main difference is that the female contains a pouch, much like a kangaroo does, located on her belly.
Possum calls are not particularly loud. Their territorial spats are best described as a loud hissing.
you call them possums if your talking about more than 1
one has a penis and the other doesnt.
possums
What do you call a female prince
we call the female goat as sheep
you possum.
Georgia's state possum is the POGO possum
Note that the question was how many do they produce, not lay. All female mammals produce eggs (or ova). The human female, for example, produces approximately 400,000 ova, all of which are present in the ovaries at birth. I do not know how many ova the female possum produces, except to say that it is definitely greater than zero, or they would never be able to reproduce.