265898880000 has 1320 divisors, whose sum is σ = 1068422282928. Its totient is φ = 63258624000.

The previous prime is 265898879993. The next prime is 265898880031. The reversal of 265898880000 is 88898562.

265898880000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3968639967 + ... + 3968640033.

Almost surely, 2^265898880000 is an apocalyptic number.

265898880000 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 265898880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534211141464).

265898880000 is an abundant number, since it is smaller than the sum of its proper divisors (802523402928).

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

265898880000 is a wasteful number, since it uses less digits than its factorization.

265898880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 265898880000 in words is "two hundred sixty-five billion, eight hundred ninety-eight million, eight hundred eighty thousand".