2205066689 has 24 divisors (see below), whose sum is σ = 2670652008. Its totient is φ = 1813674240.

The previous prime is 2205066653. The next prime is 2205066701. The reversal of 2205066689 is 9866605022.

It can be written as a sum of positive squares in 4 ways, for example, as 805708225 + 1399358464 = 28385^2 + 37408^2 .

It is not a de Polignac number, because 2205066689 - 2⁸ = 2205066433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205066629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124019 + ... + 140679.

It is an arithmetic number, because the mean of its divisors is an integer number (111277167).

Almost surely, 2^2205066689 is an apocalyptic number.

It is an amenable number.

2205066689 is a deficient number, since it is larger than the sum of its proper divisors (465585319).

2205066689 is a wasteful number, since it uses less digits than its factorization.

2205066689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16785 (or 16778 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 2205066689 is about 46958.1376227806. The cubic root of 2205066689 is about 1301.5891195883.

The spelling of 2205066689 in words is "two billion, two hundred five million, sixty-six thousand, six hundred eighty-nine".