2143222164516 has 12 divisors (see below), whose sum is σ = 5000851717232. Its totient is φ = 714407388168.

The previous prime is 2143222164497. The next prime is 2143222164547. The reversal of 2143222164516 is 6154612223412.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89300923510 + ... + 89300923533.

Almost surely, 2^{2143222164516} is an apocalyptic number.

It is an amenable number.

2143222164516 is an abundant number, since it is smaller than the sum of its proper divisors (2857629552716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143222164516 is a wasteful number, since it uses less digits than its factorization.

2143222164516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178601847050 (or 178601847048 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

Adding to 2143222164516 its reverse (6154612223412), we get a palindrome (8297834387928).

The spelling of 2143222164516 in words is "two trillion, one hundred forty-three billion, two hundred twenty-two million, one hundred sixty-four thousand, five hundred sixteen".