2204544664 has 64 divisors (see below), whose sum is σ = 5088522240. Its totient is φ = 874558080.

The previous prime is 2204544659. The next prime is 2204544701. The reversal of 2204544664 is 4664454022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12322 + ... + 67534.

It is an arithmetic number, because the mean of its divisors is an integer number (79508160).

Almost surely, 2^2204544664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2204544664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2544261120).

2204544664 is an abundant number, since it is smaller than the sum of its proper divisors (2883977576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2204544664 is a wasteful number, since it uses less digits than its factorization.

2204544664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55280 (or 55276 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

The square root of 2204544664 is about 46952.5788855096. The cubic root of 2204544664 is about 1301.4863992354.

Adding to 2204544664 its reverse (4664454022), we get a palindrome (6868998686).

The spelling of 2204544664 in words is "two billion, two hundred four million, five hundred forty-four thousand, six hundred sixty-four".