Possible Clues:

• Calling for silence around such a large amount just won't work
• Upside-down branch hanger
• Bent to do nothing
• Laziness of large number in shorthand
• One with ergophobia
• Inertia makes one quiet about fate
• Shut up about OT character's sin!
• Slow-moving tree-hanging animal
• Disinclination to exertion
• Paragon of slowness