2216323516 has 24 divisors (see below), whose sum is σ = 4415128704. Its totient is φ = 963618480.

The previous prime is 2216323513. The next prime is 2216323531. The reversal of 2216323516 is 6153236122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216323513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094010 + ... + 1096033.

It is an arithmetic number, because the mean of its divisors is an integer number (183963696).

Almost surely, 2^2216323516 is an apocalyptic number.

It is an amenable number.

2216323516 is a deficient number, since it is larger than the sum of its proper divisors (2198805188).

2216323516 is a wasteful number, since it uses less digits than its factorization.

2216323516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190081 (or 2190079 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 2216323516 is about 47077.8452777949. The cubic root of 2216323516 is about 1303.8002245488.

Adding to 2216323516 its reverse (6153236122), we get a palindrome (8369559638).

The spelling of 2216323516 in words is "two billion, two hundred sixteen million, three hundred twenty-three thousand, five hundred sixteen".