It's actually 1.15... x 10^23 or...
115,848,153,000,000,000,000,000 kilograms
That's 115 sextillion kilograms (I may have mathed wrong but I think this is closer? It's using NBT data and the assumption of 32 maximum layers of it)
The maximum weight you can carry in Minecraft is complicated. For starters, ice is better than anything else because the max amount of blocks one water can make is ~537 million blocks^, and ice stacks to 64. Then you use shulkers and stuff. A cubic meter of water is ~1000 KG, so the max weight Steve can carry in two hands is...
45,778,176,000,000,000 kilograms (45 quadrillion kilograms)
- ^ Citation: Alexa real on YouTube*
comments (single view)
using nbt data storage allows you stack chests full of the thing (to 64) in chests and stack that chest in a chest to 64 and put those in a chest and put those in a chest…. so its better than shulkers
You can't do that in survival so it seemed like cheating to me. At that point you can use command blocks and create a block with infinite storage.