2206000645 has 8 divisors (see below), whose sum is σ = 2690597880. Its totient is φ = 1735869120.

The previous prime is 2206000639. The next prime is 2206000649. The reversal of 2206000645 is 5460006022.

It can be written as a sum of positive squares in 4 ways, for example, as 38725729 + 2167274916 = 6223^2 + 46554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2206000645 - 2¹⁵ = 2205967877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206000649) 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, 3616090 + ... + 3616699.

It is an arithmetic number, because the mean of its divisors is an integer number (336324735).

Almost surely, 2^2206000645 is an apocalyptic number.

It is an amenable number.

2206000645 is a deficient number, since it is larger than the sum of its proper divisors (484597235).

2206000645 is an equidigital number, since it uses as much as digits as its factorization.

2206000645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232855.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2206000645 is about 46968.0811296353. The cubic root of 2206000645 is about 1301.7728563415.

Adding to 2206000645 its reverse (5460006022), we get a palindrome (7666006667).

The spelling of 2206000645 in words is "two billion, two hundred six million, six hundred forty-five", and thus it is an aban number.