Good point, or not on points.
I counted the ribs on mine, it has 15 with a few joining at the bottom. It doesn't have spines as such, more like a tuft of fluff which get bigger near the top. I can see maybe one tiny spine on lower, smaller tufts. I've had this cactus for maybe 15 years, bought as a young plant.
I've counted 13 or 14 ribs on Myriam's.