Answer by configurator for Quickest Method to Reverse in String in C#.net

Wouldn't reversing the number be faster?

// unchecked code, don't kill me if it doesn't even compile.ulong Reverse(ulong number) {    ulong result = 0;    while (number > 0) {        ulong digit = number % 10;        result = result * 10 + digit;        number /= 10;    }    return result;}