I was reading https://en.wikipedia.org/wiki/International_System_of_Units https://en.wikipedia.org/wiki/International_System_of_Units and a few related the othe

I was reading https://en.wikipedia.org/wiki/International_System_of_Units https://en.wikipedia.org/wiki/International_System_of_Units and a few related the other day for fun and pleasing moment, and one thing I retained from that is that "The kilogram is the only coherent SI unit whose name and symbol include a prefix." Also that the standard explicitly forbid redundant use of prefixes like kilo-kilo-. I guess that if you want to stick to TWh you can use - 10700 - 10,700 - 10.7×10³ - 1.07×10⁴ - 10.7e3 - 1.07e4 - 29E8₁₆