2656200220 has 36 divisors (see below), whose sum is σ = 5601282120. Its totient is φ = 1058061664.

The previous prime is 2656200191. The next prime is 2656200227. The reversal of 2656200220 is 220026562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656200227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4717659 + ... + 4718221.

It is an arithmetic number, because the mean of its divisors is an integer number (155591170).

Almost surely, 2^2656200220 is an apocalyptic number.

2656200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656200220 is an abundant number, since it is smaller than the sum of its proper divisors (2945081900).

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

2656200220 is an equidigital number, since it uses as much as digits as its factorization.

2656200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2656200220 is about 51538.3373810215. The cubic root of 2656200220 is about 1384.9059127091.

Adding to 2656200220 its reverse (220026562), we get a palindrome (2876226782).

The spelling of 2656200220 in words is "two billion, six hundred fifty-six million, two hundred thousand, two hundred twenty".