2250366661 has 4 divisors (see below), whose sum is σ = 2259704524. Its totient is φ = 2241028800.

The previous prime is 2250366659. The next prime is 2250366689. The reversal of 2250366661 is 1666630522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1226750625 + 1023616036 = 35025^2 + 31994^2 .

It is a cyclic number.

It is not a de Polignac number, because 2250366661 - 2¹ = 2250366659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2250366661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250366361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4668570 + ... + 4669051.

It is an arithmetic number, because the mean of its divisors is an integer number (564926131).

Almost surely, 2^2250366661 is an apocalyptic number.

It is an amenable number.

2250366661 is a deficient number, since it is larger than the sum of its proper divisors (9337863).

2250366661 is an equidigital number, since it uses as much as digits as its factorization.

2250366661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337862.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2250366661 is about 47438.0296913774. The cubic root of 2250366661 is about 1310.4418727687.

The spelling of 2250366661 in words is "two billion, two hundred fifty million, three hundred sixty-six thousand, six hundred sixty-one".