2233664321 has 4 divisors (see below), whose sum is σ = 2552759232. Its totient is φ = 1914569412.

The previous prime is 2233664317. The next prime is 2233664353. The reversal of 2233664321 is 1234663322.

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 not a de Polignac number, because 2233664321 - 2² = 2233664317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2233664821) 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, 159547445 + ... + 159547458.

It is an arithmetic number, because the mean of its divisors is an integer number (638189808).

Almost surely, 2^2233664321 is an apocalyptic number.

It is an amenable number.

2233664321 is a deficient number, since it is larger than the sum of its proper divisors (319094911).

2233664321 is an equidigital number, since it uses as much as digits as its factorization.

2233664321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319094910.

The product of its digits is 31104, while the sum is 32.

The square root of 2233664321 is about 47261.6580432807. The cubic root of 2233664321 is about 1307.1917624044.

Subtracting from 2233664321 its reverse (1234663322), we obtain a palindrome (999000999).

The spelling of 2233664321 in words is "two billion, two hundred thirty-three million, six hundred sixty-four thousand, three hundred twenty-one".