2566265382240 has 96 divisors (see below), whose sum is σ = 9238555388160. Its totient is φ = 586574943744.

The previous prime is 2566265382157. The next prime is 2566265382253. The reversal of 2566265382240 is 422835626652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381881370 + ... + 381888089.

It is an arithmetic number, because the mean of its divisors is an integer number (96234951960).

Almost surely, 2^{2566265382240} is an apocalyptic number.

2566265382240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2566265382240 is an abundant number, since it is smaller than the sum of its proper divisors (6672290005920).

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

2566265382240 is a wasteful number, since it uses less digits than its factorization.

2566265382240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763769484 (or 763769476 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 51.

The spelling of 2566265382240 in words is "two trillion, five hundred sixty-six billion, two hundred sixty-five million, three hundred eighty-two thousand, two hundred forty".