const runtime.maxUint64

4 uses

	runtime (current package)
		string.go#L389: 	maxUint64 = ^uint64(0)
		string.go#L390: 	maxInt64  = int64(maxUint64 >> 1)
		string.go#L413: 		if un > maxUint64/10 {
		string.go#L531: 	if un > maxUint64/m {