"Eine Billion" is Million² bi -> 2 "Eine Billiarde" is 1000 * Million² "Eine Trillion" is million³ tri -> 3 "Eine Trilliarde" is 1000 * Million³ And so on
Yes I knew what a million, milliard, billion, billiarde and so on are, but it never made click that the long scale makes so much sense.
I also like the easy suffix for thousand (k), million (M), billion (B), trillion (T), quadrillion (Q) for written conversation. $10B revenue, 5k liters, 300M people, etc.
For anything bigger, you'd use 'scientific' notation anyway.
I think an exponential system would do better to have a different naming scheme.
Eg it's common to read sentences like the following in popular science texts: 'ACME produces one quintillion widgets per year, that's a one followed eighteen zeroes.' The second half is basically scientific notation, but written out.