The difference between social security number 16 and 10.

First of all, the social security number does not have 16 digits. The new version of social security card number generally adopts 18-digit ID number.

As far as their differences are concerned, there is no strict distinction, only the difference between the new version and the old version.

The social security card adopts the national unified standard, and the social security number adopts the citizenship number in accordance with relevant regulations. The initial social security inquiry password is generally the last 8 digits of the ID card of the insured user 18 (if the last digit is X, X will be uniformly converted into 0).

Before that, the whole country was unified into ten digits. Of course, in the early days, from six to eight were numbers.

There are three numbers on the social security card, namely card number, computer number and employee ID number. The card number changes with the water flow, which is 10, while the computer number is fixed, with 9 digits and 7 digits. The 7-digit number refers to the employees who participated in the insurance in the early stage, usually in the 1990s, and those who participated in the insurance in the later stage are all 9-digit numbers.