2265818766 has 16 divisors (see below), whose sum is σ = 4532112000. Its totient is φ = 755193848.

The previous prime is 2265818747. The next prime is 2265818771. The reversal of 2265818766 is 6678185622.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent 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, 85135 + ... + 108533.

It is an arithmetic number, because the mean of its divisors is an integer number (283257000).

Almost surely, 2^2265818766 is an apocalyptic number.

2265818766 is an abundant number, since it is smaller than the sum of its proper divisors (2266293234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2265818766 is a wasteful number, since it uses less digits than its factorization.

2265818766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39543.

The product of its digits is 1935360, while the sum is 51.

The square root of 2265818766 is about 47600.6172859134. The cubic root of 2265818766 is about 1313.4344095095.

The spelling of 2265818766 in words is "two billion, two hundred sixty-five million, eight hundred eighteen thousand, seven hundred sixty-six".