2211116656 has 40 divisors (see below), whose sum is σ = 4943604224. Its totient is φ = 938416320.

The previous prime is 2211116651. The next prime is 2211116669. The reversal of 2211116656 is 6566111122.

2211116656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211116651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84300 + ... + 107371.

Almost surely, 2^2211116656 is an apocalyptic number.

It is an amenable number.

2211116656 is an abundant number, since it is smaller than the sum of its proper divisors (2732487568).

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

2211116656 is a wasteful number, since it uses less digits than its factorization.

2211116656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191789 (or 191783 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 2211116656 is about 47022.5122255287. The cubic root of 2211116656 is about 1302.7784079495.

Adding to 2211116656 its reverse (6566111122), we get a palindrome (8777227778).

The spelling of 2211116656 in words is "two billion, two hundred eleven million, one hundred sixteen thousand, six hundred fifty-six".