2061522266 has 16 divisors (see below), whose sum is σ = 3177911880. Its totient is φ = 1002254400.

The previous prime is 2061522259. The next prime is 2061522283. The reversal of 2061522266 is 6622251602.

It can be written as a sum of positive squares in 4 ways, for example, as 2017896241 + 43626025 = 44921^2 + 6605^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118316 + ... + 134616.

Almost surely, 2^2061522266 is an apocalyptic number.

2061522266 is a deficient number, since it is larger than the sum of its proper divisors (1116389614).

2061522266 is a wasteful number, since it uses less digits than its factorization.

2061522266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18049.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2061522266 is about 45403.9895383655. The cubic root of 2061522266 is about 1272.7096682856.

Adding to 2061522266 its reverse (6622251602), we get a palindrome (8683773868).

The spelling of 2061522266 in words is "two billion, sixty-one million, five hundred twenty-two thousand, two hundred sixty-six".