22016816 has 20 divisors (see below), whose sum is σ = 43260624. Its totient is φ = 10852800.

The previous prime is 22016809. The next prime is 22016831. The reversal of 22016816 is 61861022.

22016816 = T₃₄₄ + T₃₄₅ + ... + T₅₅₆.

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, 8555 + ... + 10826.

Almost surely, 2^22016816 is an apocalyptic number.

It is an amenable number.

22016816 is a deficient number, since it is larger than the sum of its proper divisors (21243808).

22016816 is a wasteful number, since it uses less digits than its factorization.

22016816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460 (or 19454 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22016816 is about 4692.2080090294. The cubic root of 22016816 is about 280.2753074490.

Adding to 22016816 its reverse (61861022), we get a palindrome (83877838).

The spelling of 22016816 in words is "twenty-two million, sixteen thousand, eight hundred sixteen".