2216556347 has 2 divisors, whose sum is σ = 2216556348. Its totient is φ = 2216556346.

The previous prime is 2216556343. The next prime is 2216556367. The reversal of 2216556347 is 7436556122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2216556347 - 2² = 2216556343 is a prime.

It is not a weakly prime, because it can be changed into another prime (2216556341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108278173 + 1108278174.

It is an arithmetic number, because the mean of its divisors is an integer number (1108278174).

Almost surely, 2^2216556347 is an apocalyptic number.

2216556347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216556347 is an equidigital number, since it uses as much as digits as its factorization.

2216556347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The square root of 2216556347 is about 47080.3180426811. The cubic root of 2216556347 is about 1303.8458789066.

The spelling of 2216556347 in words is "two billion, two hundred sixteen million, five hundred fifty-six thousand, three hundred forty-seven".