2133216609 has 16 divisors (see below), whose sum is σ = 2940579840. Its totient is φ = 1374140880.

The previous prime is 2133216577. The next prime is 2133216629. The reversal of 2133216609 is 9066123312.

It is not a de Polignac number, because 2133216609 - 2⁵ = 2133216577 is a prime.

It is a super-2 number, since 2×2133216609² = 9101226201826917762, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133216609.

It is not an unprimeable number, because it can be changed into a prime (2133216629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43884 + ... + 78690.

It is an arithmetic number, because the mean of its divisors is an integer number (183786240).

Almost surely, 2^2133216609 is an apocalyptic number.

It is an amenable number.

2133216609 is a deficient number, since it is larger than the sum of its proper divisors (807363231).

2133216609 is a wasteful number, since it uses less digits than its factorization.

2133216609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35500.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 2133216609 is about 46186.7579399117. The cubic root of 2133216609 is about 1287.2957006908.

The spelling of 2133216609 in words is "two billion, one hundred thirty-three million, two hundred sixteen thousand, six hundred nine".