2216566155 has 32 divisors (see below), whose sum is σ = 3579278400. Its totient is φ = 1171279872.

The previous prime is 2216566151. The next prime is 2216566169. The reversal of 2216566155 is 5516656122.

It is a happy number.

It is not a de Polignac number, because 2216566155 - 2² = 2216566151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2216566151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2072961 + ... + 2074029.

It is an arithmetic number, because the mean of its divisors is an integer number (111852450).

Almost surely, 2^2216566155 is an apocalyptic number.

2216566155 is a deficient number, since it is larger than the sum of its proper divisors (1362712245).

2216566155 is a wasteful number, since it uses less digits than its factorization.

2216566155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223.

The product of its digits is 108000, while the sum is 39.

The square root of 2216566155 is about 47080.4222049888. The cubic root of 2216566155 is about 1303.8478020251.

The spelling of 2216566155 in words is "two billion, two hundred sixteen million, five hundred sixty-six thousand, one hundred fifty-five".