2220324660 has 72 divisors (see below), whose sum is σ = 6899275656. Its totient is φ = 577643520.

The previous prime is 2220324643. The next prime is 2220324703. The reversal of 2220324660 is 664230222.

2220324660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 207187236 + 2013137424 = 14394^2 + 44868^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143049 + ... + 157808.

It is an arithmetic number, because the mean of its divisors is an integer number (95823273).

Almost surely, 2^2220324660 is an apocalyptic number.

2220324660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220324660 is an abundant number, since it is smaller than the sum of its proper divisors (4678950996).

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

2220324660 is a wasteful number, since it uses less digits than its factorization.

2220324660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300913 (or 300908 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 2220324660 is about 47120.3210939824. The cubic root of 2220324660 is about 1304.5843393692.

Adding to 2220324660 its reverse (664230222), we get a palindrome (2884554882).

The spelling of 2220324660 in words is "two billion, two hundred twenty million, three hundred twenty-four thousand, six hundred sixty".