2220610656 has 48 divisors (see below), whose sum is σ = 6359024448. Its totient is φ = 672912000.

The previous prime is 2220610619. The next prime is 2220610727. The reversal of 2220610656 is 6560160222.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2220610656² = 9862223371081500672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050370 + ... + 1052481.

It is an arithmetic number, because the mean of its divisors is an integer number (132479676).

Almost surely, 2^2220610656 is an apocalyptic number.

It is an amenable number.

2220610656 is an abundant number, since it is smaller than the sum of its proper divisors (4138413792).

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

2220610656 is a wasteful number, since it uses less digits than its factorization.

2220610656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102875 (or 2102867 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2220610656 is about 47123.3557378929. The cubic root of 2220610656 is about 1304.6403506800.

Adding to 2220610656 its reverse (6560160222), we get a palindrome (8780770878).

The spelling of 2220610656 in words is "two billion, two hundred twenty million, six hundred ten thousand, six hundred fifty-six".