1. One quadrillion (10^15)

Encyclopedia: Peta-

• hotfoot
• Hoth
• hothead
• hotheaded
• hotheadedly
• hotheadedness
• hothouse
• Hothr
• hotline
• hotly
• hotness
• hotplate
• hotpot
• hots
• hotshot
• hotspot
• hotspur
• Hottentot
• Hottentot bread
• Hottentot bread vine
• Hottentot fig
• Hottentot's bread
• Hottentot's bread vine
• Hottentot's fig
• hottie