2265621120040 has 16 divisors (see below), whose sum is σ = 5097647520180. Its totient is φ = 906248448000.

The previous prime is 2265621120023. The next prime is 2265621120041. The reversal of 2265621120040 is 400211265622.

It can be written as a sum of positive squares in 2 ways, for example, as 2134795676836 + 130825443204 = 1461094^2 + 361698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2265621119984 and 2265621120011.

It is not an unprimeable number, because it can be changed into a prime (2265621120041) 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, 28320263961 + ... + 28320264040.

Almost surely, 2^{2265621120040} is an apocalyptic number.

2265621120040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265621120040 is an abundant number, since it is smaller than the sum of its proper divisors (2832026400140).

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

2265621120040 is a wasteful number, since it uses less digits than its factorization.

2265621120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56640528012 (or 56640528008 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 2265621120040 its reverse (400211265622), we get a palindrome (2665832385662).

The spelling of 2265621120040 in words is "two trillion, two hundred sixty-five billion, six hundred twenty-one million, one hundred twenty thousand, forty".