3221443516432 has 40 divisors (see below), whose sum is σ = 6517663003584. Its totient is φ = 1539568001664.

The previous prime is 3221443516381. The next prime is 3221443516507. The reversal of 3221443516432 is 2346153441223.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2682618 + ... + 3693145.

Almost surely, 2^{3221443516432} is an apocalyptic number.

It is an amenable number.

3221443516432 is an abundant number, since it is smaller than the sum of its proper divisors (3296219487152).

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

3221443516432 is a wasteful number, since it uses less digits than its factorization.

3221443516432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377167 (or 6377161 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

Adding to 3221443516432 its reverse (2346153441223), we get a palindrome (5567596957655).

The spelling of 3221443516432 in words is "three trillion, two hundred twenty-one billion, four hundred forty-three million, five hundred sixteen thousand, four hundred thirty-two".