0 is neither a positive or negative number, and is at the center of a number line.
0 is the additive identity, meaning that adding 0 to any number results in the same number.
Any number multiplied by 0 becomes 0, and any number divided by 0 is either undefined or Infinity (if we count Infinity as a number). The smaller the number you're dividing by, the larger the output is going to be.
It comes before -0.001 and after 0.001. . .