set 2141483648 不够用有定义可以超过的？求大佬告知。

以下代码复制粘贴到记事本，另存为xx.bat，编码选ANSI
@璐村惂鐢ㄦ埛_000076K馃惥 off
rem 大数及小数计算
set #=Any question&set @=WX&set $=Q&set/az=0x53b7e0b4
title %#% +%$%%$%/%@璐村惂鐢ㄦ埛_053Q95e馃惥 %z%
set "s=12/6+7*3-2.56"
>"%tmp%\v.v" echo;WSH.echo Eval(WSH.Arguments(0)):WSH.Quit
for /f %%a in ('cscript -nologo -e:vbscript "%tmp%\v.v" "%s%"') do echo;%%a
echo;%#% +%$%%$%/%@% %z%
pause
exit