2265118208920 has 64 divisors (see below), whose sum is σ = 6012479692800. Its totient is φ = 751559955840.

The previous prime is 2265118208893. The next prime is 2265118208921. The reversal of 2265118208920 is 298028115622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265118208921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130470480 + ... + 130487839.

It is an arithmetic number, because the mean of its divisors is an integer number (93944995200).

Almost surely, 2^{2265118208920} is an apocalyptic number.

2265118208920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265118208920 is an abundant number, since it is smaller than the sum of its proper divisors (3747361483880).

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

2265118208920 is a wasteful number, since it uses less digits than its factorization.

2265118208920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260958368 (or 260958364 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 2265118208920 in words is "two trillion, two hundred sixty-five billion, one hundred eighteen million, two hundred eight thousand, nine hundred twenty".