It’s possibly a sneaky piece of marketing but Variety seem to have all the box office numbers to hand:

On the independent scene, “Late Night With the Devil” took sixth place and summoned $2.8 million from 1,034 venues, including (and you can’t make this up) $666,666 on Sunday. This marks the biggest opening weekend for its distributor IFC Films, overtaking 2022’s “Watcher” with $826,775. The low-budget thriller stars David Dastmalchian as a late-night talk show host who keeps the cameras rolling during a live Satanic incident.