265558104960 has 256 divisors, whose sum is σ = 873294428160. Its totient is φ = 68588494848.

The previous prime is 265558104953. The next prime is 265558104971. The reversal of 265558104960 is 69401855562.

It is a happy number.

It is a super-2 number, since 2×265558104960² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15833539 + ... + 15850301.

It is an arithmetic number, because the mean of its divisors is an integer number (3411306360).

Almost surely, 2^265558104960 is an apocalyptic number.

265558104960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265558104960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436647214080).

265558104960 is an abundant number, since it is smaller than the sum of its proper divisors (607736323200).

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

265558104960 is a wasteful number, since it uses less digits than its factorization.

265558104960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17045 (or 17033 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 265558104960 in words is "two hundred sixty-five billion, five hundred fifty-eight million, one hundred four thousand, nine hundred sixty".