The idea is to subtract 1 from that number.
Expressed in Arabic numerals, the Roman numeral MCLXVI corresponds to 1166.
name the numeral comes before the given cardinals number 2599 2598
Yes - cardinal numbers are the counting numbers. This is as distinct from ordinal numbers - the corresponding ordinal number for 66 is sixty-sixth.
It is 8039.
MCCC is 1,300 in Roman Numerals. I am unaware of a system with "W" as a number, though some have used the alphabet for numbers before, such as the Hebrews.
The whole number before it is 8407
It is 18607, as in the question.
13 is a cardinal number, not an ordinal number.
1992, that is what it is in regular numbers.