2216622606 has 64 divisors (see below), whose sum is σ = 5017420800. Its totient is φ = 646963200.

The previous prime is 2216622587. The next prime is 2216622607. The reversal of 2216622606 is 6062266122.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216622607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208590 + ... + 218958.

It is an arithmetic number, because the mean of its divisors is an integer number (78397200).

Almost surely, 2^2216622606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216622606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508710400).

2216622606 is an abundant number, since it is smaller than the sum of its proper divisors (2800798194).

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

2216622606 is a wasteful number, since it uses less digits than its factorization.

2216622606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 2216622606 is about 47081.0217178854. The cubic root of 2216622606 is about 1303.8588706304.

Adding to 2216622606 its reverse (6062266122), we get a palindrome (8278888728).

The spelling of 2216622606 in words is "two billion, two hundred sixteen million, six hundred twenty-two thousand, six hundred six".