1.07 zettahash per second.
https://npub12h358ejcjpeaxyhu4vcqwhjtg6qndxm9gk007d48utlylzq2e5dsdmk3mr.blossom.band/0a96d556e6ec2fb1fe78016485e882b73fac4d879034802927a5d75119122f7b.jpg
Outside of things the size of atoms, or as numerous as the stars, I can’t think of anything I’d use zetta for…maybe number of human cells on earth?