Howdy. Maximum is 15. Once it gets to that point, it will round off anything past that. To test it, add three more digits between the 0 and 4 in your example number, and see what happens.
As far as a work around, if you want to use it as a number, no. If you need it for display purposes, then you could put ' before the number which will retain all the digits, but it will be treated as text, not as a number.
old, slow, and confused
but at least I'm inconsistent!