megatrillion means A great number of trillions. Lexicurio rates it Sui generis — a strength score of 100 out of 100.
Etymology
From mega- + trillion.
noun
- A great number of trillions.“The breadth of Creation makes it impossible for us to step back far enough to see the story that the tapestry tells; the intricacy of it, from the macro to the micro to the subatomic, makes it impossible for us to comprehend the megatrillions of connections between the threads in just one small fragment of the whole.”