22543004216 has 16 divisors (see below), whose sum is σ = 43251113400. Its totient is φ = 11009373984.

The previous prime is 22543004201. The next prime is 22543004249. The reversal of 22543004216 is 61240034522.

It is a congruent number.

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, 32765651 + ... + 32766338.

Almost surely, 2^22543004216 is an apocalyptic number.

It is an amenable number.

22543004216 is a deficient number, since it is larger than the sum of its proper divisors (20708109184).

22543004216 is a wasteful number, since it uses less digits than its factorization.

22543004216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65532038 (or 65532034 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 22543004216 its reverse (61240034522), we get a palindrome (83783038738).

The spelling of 22543004216 in words is "twenty-two billion, five hundred forty-three million, four thousand, two hundred sixteen".