Well with the power of NBT tags you can do something like this take a chest fill it with gold blocks then copy that chest with

Ctrl + Shift + Middle Mouse Button

Then take that chest and fill another chest with 27 stacks of 64 of the chests filled with gold blocks then do the same with the new chest you can repeat that process over and over 561 times. But I don't think your computer can handle it.

But if we could do it then the final result would be 1.91 × 10^561 Kilograms or 6.35 × 10^505 times bigger than the observable universe

Wich if you want to know how big of a number that is then I will give you an idea of how big that number is so 10^1 is the same thing as 10 multiplied on it self once.

10^1 = 10

10^2 = 100

10^3 = 1000

10^4 = 10000

And so on…

So that means that 10^100 is 10 with 100 0′s after it which makes 1 googol.

What we are working with is more than 5 googols.

So that means that 6.35 × 10^505 is almost impossible to write down on a piece of paper.

Why gold blocks? When notch apples are heavier. Well because you don't need a thing that weighs 154.4 metric tons to come to the conclusion that Steve is strong.