22016855 has 16 divisors (see below), whose sum is σ = 30481920. Its totient is φ = 14953632.

The previous prime is 22016849. The next prime is 22016867. The reversal of 22016855 is 55861022.

It is a cyclic number.

It is not a de Polignac number, because 22016855 - 2²⁰ = 20968279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806 + ... + 6684.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^22016855 is an apocalyptic number.

22016855 is a deficient number, since it is larger than the sum of its proper divisors (8465065).

22016855 is a wasteful number, since it uses less digits than its factorization.

22016855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 22016855 is about 4692.2121648536. The cubic root of 22016855 is about 280.2754729397.

Adding to 22016855 its reverse (55861022), we get a palindrome (77877877).

The spelling of 22016855 in words is "twenty-two million, sixteen thousand, eight hundred fifty-five".