if you dont want to interact much with them get 3 females and a 60 gallon bin. Have multiple wheels, toys, food bowls, and hides to reduce territorial squabbles. Provide a daily novel object to keep them mentally stumulated.
If you want to interact with the mouse get a single male and a 20-30 gallon bin, fill it with toys and hides, and interact with the mouse as much as possible.
You cannot keep multiple males and you cannot keep a single female. Here is a pic of a house I made for my mouse on christmas. I encourage you to recycle stuff like egg cartons, toilet paper and paper towel tubes, and get craft sticks.