2243661056 has 288 divisors, whose sum is σ = 6002492160. Its totient is φ = 812187648.

The previous prime is 2243661041. The next prime is 2243661083. The reversal of 2243661056 is 6501663422.

It is a happy number.

It is a super-2 number, since 2×2243661056² = 10068029868422070272, 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 31 ways as a sum of consecutive naturals, for example, 16377020 + ... + 16377156.

Almost surely, 2^2243661056 is an apocalyptic number.

2243661056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243661056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3001246080).

2243661056 is an abundant number, since it is smaller than the sum of its proper divisors (3758831104).

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

2243661056 is a wasteful number, since it uses less digits than its factorization.

2243661056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 215 counting only the distinct ones).

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

The square root of 2243661056 is about 47367.2994374811. The cubic root of 2243661056 is about 1309.1389668478.

The spelling of 2243661056 in words is "two billion, two hundred forty-three million, six hundred sixty-one thousand, fifty-six".