2216666226216 has 128 divisors (see below), whose sum is σ = 6168818073600. Its totient is φ = 659154205440.

The previous prime is 2216666226199. The next prime is 2216666226223. The reversal of 2216666226216 is 6126226666122.

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 6992545 + ... + 7302671.

It is an arithmetic number, because the mean of its divisors is an integer number (48193891200).

Almost surely, 2^{2216666226216} is an apocalyptic number.

2216666226216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216666226216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3084409036800).

2216666226216 is an abundant number, since it is smaller than the sum of its proper divisors (3952151847384).

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

2216666226216 is a wasteful number, since it uses less digits than its factorization.

2216666226216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310919 (or 310915 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The spelling of 2216666226216 in words is "two trillion, two hundred sixteen billion, six hundred sixty-six million, two hundred twenty-six thousand, two hundred sixteen".