265580803340 has 24 divisors (see below), whose sum is σ = 557737820640. Its totient is φ = 106228867328.

The previous prime is 265580803291. The next prime is 265580803343. The reversal of 265580803340 is 43308085562.

It is a junction number, because it is equal to n+sod(n) for n = 265580803291 and 265580803300.

It is not an unprimeable number, because it can be changed into a prime (265580803343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467369 + ... + 865791.

It is an arithmetic number, because the mean of its divisors is an integer number (23239075860).

Almost surely, 2^265580803340 is an apocalyptic number.

265580803340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265580803340 is an abundant number, since it is smaller than the sum of its proper divisors (292157017300).

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

265580803340 is a wasteful number, since it uses less digits than its factorization.

265580803340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431761 (or 431759 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 265580803340 in words is "two hundred sixty-five billion, five hundred eighty million, eight hundred three thousand, three hundred forty".