I keep getting harassing phone calls from this number

I received a threatening phone call from this number, saying that I owed a Debt.

call several time with threats about debt that I owe the thing that got me was they knew my ss number. Look out hang up.

I got a call and message stating I have a debt they are collecting. They also said they tried contacting me numerous times but I've never gotten any calls from them till today. They said they were contacting local police to have legal action taken against me. Who is this person that they supposedly say I owe?

If this number calls you, contact your local police dept cyber division and report it.  It is a scam and they use threatening tactics to get money from you.  A debt collector can not get the police involved, unless you got money or credit from them under false pretenses.  A debt collector has to go through a legal process to get their money.  It is a civil matter not a criminal matter. So don't be scammed and give in to the threats.