2213056664 has 64 divisors (see below), whose sum is σ = 5215795200. Its totient is φ = 856854144.

The previous prime is 2213056663. The next prime is 2213056721. The reversal of 2213056664 is 4666503122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213056663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877 + ... + 66555.

It is an arithmetic number, because the mean of its divisors is an integer number (81496800).

Almost surely, 2^2213056664 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 2213056664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2607897600).

2213056664 is an abundant number, since it is smaller than the sum of its proper divisors (3002738536).

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

2213056664 is a wasteful number, since it uses less digits than its factorization.

2213056664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64752 (or 64748 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2213056664 is about 47043.1362049768. The cubic root of 2213056664 is about 1303.1593107717.

Adding to 2213056664 its reverse (4666503122), we get a palindrome (6879559786).

The spelling of 2213056664 in words is "two billion, two hundred thirteen million, fifty-six thousand, six hundred sixty-four".