We have to admit that the initial supply is defined randomly.
It's just for defining the total amount,either 100M or 1Billion is okay.

Important UpdatesThe initial total supply will be changed from current 100 million to 64,570,081 to conform with
Number.MAX_SAFE_INTEGER.
With this change,there will be no more conversions needed from machine side of IOT area,decrease the burden,and will interactive well with machine built in JavaScript and framework,such as node.js .
Others properties same as before.
OP will be updated soon.