2220056646 has 16 divisors (see below), whose sum is σ = 4633161984. Its totient is φ = 707844104.

The previous prime is 2220056617. The next prime is 2220056681. The reversal of 2220056646 is 6466500222.

It is a super-2 number, since 2×2220056646² = 9857303022897538632, 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8043546 + ... + 8043821.

It is an arithmetic number, because the mean of its divisors is an integer number (289572624).

Almost surely, 2^2220056646 is an apocalyptic number.

2220056646 is an abundant number, since it is smaller than the sum of its proper divisors (2413105338).

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

2220056646 is a wasteful number, since it uses less digits than its factorization.

2220056646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16087395.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2220056646 is about 47117.4770759216. The cubic root of 2220056646 is about 1304.5318454039.

Adding to 2220056646 its reverse (6466500222), we get a palindrome (8686556868).

The spelling of 2220056646 in words is "two billion, two hundred twenty million, fifty-six thousand, six hundred forty-six".