2113216650 has 72 divisors (see below), whose sum is σ = 5682972204. Its totient is φ = 562982400.

The previous prime is 2113216619. The next prime is 2113216661. The reversal of 2113216650 is 566123112.

2113216650 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 2 + 1 + 6 + 650 = 666.

2113216650 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 604127241 + 1509089409 = 24579^2 + 38847^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 728002 + ... + 730898.

Almost surely, 2^2113216650 is an apocalyptic number.

2113216650 is an abundant number, since it is smaller than the sum of its proper divisors (3569755554).

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

2113216650 is a wasteful number, since it uses less digits than its factorization.

2113216650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536 (or 4528 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2113216650 is about 45969.7362402701. The cubic root of 2113216650 is about 1283.2600512867.

Adding to 2113216650 its reverse (566123112), we get a palindrome (2679339762).

The spelling of 2113216650 in words is "two billion, one hundred thirteen million, two hundred sixteen thousand, six hundred fifty".