2268088661 has 2 divisors, whose sum is σ = 2268088662. Its totient is φ = 2268088660.

The previous prime is 2268088651. The next prime is 2268088687. The reversal of 2268088661 is 1668808622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1808800900 + 459287761 = 42530^2 + 21431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2268088661 - 2⁶ = 2268088597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2268088631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134044330 + 1134044331.

It is an arithmetic number, because the mean of its divisors is an integer number (1134044331).

Almost surely, 2^2268088661 is an apocalyptic number.

It is an amenable number.

2268088661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268088661 is an equidigital number, since it uses as much as digits as its factorization.

2268088661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 2268088661 is about 47624.4544430695. The cubic root of 2268088661 is about 1313.8728622259.

The spelling of 2268088661 in words is "two billion, two hundred sixty-eight million, eighty-eight thousand, six hundred sixty-one".