2216116256 has 24 divisors (see below), whose sum is σ = 4469395644. Its totient is φ = 1081031680.

The previous prime is 2216116181. The next prime is 2216116289. The reversal of 2216116256 is 6526116122.

It can be written as a sum of positive squares in 2 ways, for example, as 1937760400 + 278355856 = 44020^2 + 16684^2 .

It is a super-2 number, since 2×2216116256² = 9822342520214915072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843245 + ... + 845868.

Almost surely, 2^2216116256 is an apocalyptic number.

It is an amenable number.

2216116256 is an abundant number, since it is smaller than the sum of its proper divisors (2253279388).

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

2216116256 is a wasteful number, since it uses less digits than its factorization.

2216116256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689164 (or 1689156 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 2216116256 is about 47075.6439786011. The cubic root of 2216116256 is about 1303.7595815566.

The spelling of 2216116256 in words is "two billion, two hundred sixteen million, one hundred sixteen thousand, two hundred fifty-six".