2112556650 has 24 divisors (see below), whose sum is σ = 5239140864. Its totient is φ = 563348400.

The previous prime is 2112556643. The next prime is 2112556651. The reversal of 2112556650 is 566552112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2112556651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7041706 + ... + 7042005.

It is an arithmetic number, because the mean of its divisors is an integer number (218297536).

Almost surely, 2^2112556650 is an apocalyptic number.

2112556650 is an abundant number, since it is smaller than the sum of its proper divisors (3126584214).

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

2112556650 is a wasteful number, since it uses less digits than its factorization.

2112556650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083726 (or 14083721 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 2112556650 is about 45962.5570437503. The cubic root of 2112556650 is about 1283.1264414140.

The spelling of 2112556650 in words is "two billion, one hundred twelve million, five hundred fifty-six thousand, six hundred fifty".