2200115656 has 32 divisors (see below), whose sum is σ = 4401254880. Its totient is φ = 1027436800.

The previous prime is 2200115647. The next prime is 2200115657. The reversal of 2200115656 is 6565110022.

It is not an unprimeable number, because it can be changed into a prime (2200115657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43930 + ... + 79561.

It is an arithmetic number, because the mean of its divisors is an integer number (137539215).

Almost surely, 2^2200115656 is an apocalyptic number.

It is an amenable number.

2200115656 is an abundant number, since it is smaller than the sum of its proper divisors (2201139224).

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

2200115656 is a wasteful number, since it uses less digits than its factorization.

2200115656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123645 (or 123641 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2200115656 is about 46905.3904791336. The cubic root of 2200115656 is about 1300.6142375436.

Adding to 2200115656 its reverse (6565110022), we get a palindrome (8765225678).

The spelling of 2200115656 in words is "two billion, two hundred million, one hundred fifteen thousand, six hundred fifty-six".