2265766540 has 12 divisors (see below), whose sum is σ = 4758109776. Its totient is φ = 906306608.

The previous prime is 2265766519. The next prime is 2265766543. The reversal of 2265766540 is 456675622.

It is not an unprimeable number, because it can be changed into a prime (2265766543) 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, 56644144 + ... + 56644183.

It is an arithmetic number, because the mean of its divisors is an integer number (396509148).

Almost surely, 2^2265766540 is an apocalyptic number.

2265766540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265766540 is an abundant number, since it is smaller than the sum of its proper divisors (2492343236).

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

2265766540 is a wasteful number, since it uses less digits than its factorization.

2265766540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113288336 (or 113288334 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 2265766540 is about 47600.0686974294. The cubic root of 2265766540 is about 1313.4243180945.

The spelling of 2265766540 in words is "two billion, two hundred sixty-five million, seven hundred sixty-six thousand, five hundred forty".