2216635573 has 4 divisors (see below), whose sum is σ = 2263798080. Its totient is φ = 2169473068.

The previous prime is 2216635567. The next prime is 2216635609. The reversal of 2216635573 is 3755366122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2216635573 - 2⁵ = 2216635541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216635523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23581183 + ... + 23581276.

It is an arithmetic number, because the mean of its divisors is an integer number (565949520).

Almost surely, 2^2216635573 is an apocalyptic number.

It is an amenable number.

2216635573 is a deficient number, since it is larger than the sum of its proper divisors (47162507).

2216635573 is an equidigital number, since it uses as much as digits as its factorization.

2216635573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47162506.

The product of its digits is 226800, while the sum is 40.

The square root of 2216635573 is about 47081.1594270999. The cubic root of 2216635573 is about 1303.8614131027.

The spelling of 2216635573 in words is "two billion, two hundred sixteen million, six hundred thirty-five thousand, five hundred seventy-three".