Avoid using long numbers for IPv6 statistics
The issue was found during 1.4 sanity checks. Source
Counting the IPv6 addresses is intimidating task. Instead of printing awfully long number of digits, we could try to say something like "5 /16 prefixes". I think this could be done with the tooltip. Although I admit that it may get very messy very quickly if you mix subnets with different lengths...
This particular screenshot taken on the shared networks page, but this problem appears in many places.