Summing digits of the number and deciding whether it is odd or even
Sample Usage: oddishOrEvenish(12445)
Working Flow:
Number: 12445 | Sum: 0
Number: 1244 | Sum: 5
Number: 124 | Sum: 9
Number: 12 | Sum: 13
Number: 1 | Sum: 15
Number: 0 | Sum: 16
Input: 12445 | Sum: 16 | Type: Even