How do you write 6 trillion trillion kilograms in standard notation?

To write 6 trillion trillion kilograms in standard notation, we first need to understand that one trillion is equal to 10^12. Therefore, 6 trillion trillion would be 6 x (10^12) x (10^12), which simplifies to 6 x 10^24. So, 6 trillion trillion kilograms in standard notation is 6 x 10^24 kilograms.