22016560 has 20 divisors (see below), whose sum is σ = 51188688. Its totient is φ = 8806592.

The previous prime is 22016557. The next prime is 22016563. The reversal of 22016560 is 6561022.

It is an interprime number because it is at equal distance from previous prime (22016557) and next prime (22016563).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (22016563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137524 + ... + 137683.

Almost surely, 2^22016560 is an apocalyptic number.

22016560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22016560 is an abundant number, since it is smaller than the sum of its proper divisors (29172128).

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

22016560 is a wasteful number, since it uses less digits than its factorization.

22016560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275220 (or 275214 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 22016560 is about 4692.1807296821. The cubic root of 22016560 is about 280.2742211467.

Adding to 22016560 its reverse (6561022), we get a palindrome (28577582).

The spelling of 22016560 in words is "twenty-two million, sixteen thousand, five hundred sixty".