2216651913216 has 384 divisors, whose sum is σ = 7262555227200. Its totient is φ = 663605084160.

The previous prime is 2216651913191. The next prime is 2216651913239. The reversal of 2216651913216 is 6123191566122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

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 31 ways as a sum of consecutive naturals, for example, 26555706 + ... + 26639046.

Almost surely, 2^{2216651913216} is an apocalyptic number.

2216651913216 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 2216651913216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3631277613600).

2216651913216 is an abundant number, since it is smaller than the sum of its proper divisors (5045903313984).

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

2216651913216 is a wasteful number, since it uses less digits than its factorization.

2216651913216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83422 (or 83396 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 2216651913216 in words is "two trillion, two hundred sixteen billion, six hundred fifty-one million, nine hundred thirteen thousand, two hundred sixteen".