this number called me claiming to be the irs saying that the irs was filing a lawsuit against me when i called them back it was a foreign guy who read off his badge  number but he asked many personal questions i refused to answer is this a legit number for the irs? i dont believe it is!

All these calls are scams. The IRS always sends letters via US Mail and has no need to file lawsuits or arrest anyone for back taxes. You can safely ignore the calls and report to the real IRS here:

https://www.irs.gov/uac/report-phishing