Definition 1 of 1
Understand that 'quadrillion' has different meanings in different countries, which might lead to confusion.
In the US, a quadrillion is 1,000,000,000,000,000, but in France, it's much larger.
A quadrillion is abstract; it's hard to imagine such a big number in reality, but think of it as hyperbole.
You've asked me a quadrillion times already!
In science and math, 'quadrillion' is used precisely, but in everyday conversation, it often just means 'a lot'.
Our sun will last for another quadrillion seconds.