265481160 has 128 divisors (see below), whose sum is σ = 914008320. Its totient is φ = 60429312.

The previous prime is 265481137. The next prime is 265481171. The reversal of 265481160 is 61184562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265782 + ... + 266778.

It is an arithmetic number, because the mean of its divisors is an integer number (7140690).

Almost surely, 2^265481160 is an apocalyptic number.

265481160 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 265481160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457004160).

265481160 is an abundant number, since it is smaller than the sum of its proper divisors (648527160).

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

265481160 is a wasteful number, since it uses less digits than its factorization.

265481160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 265481160 is about 16293.5926056840. The cubic root of 265481160 is about 642.7043443549.

The spelling of 265481160 in words is "two hundred sixty-five million, four hundred eighty-one thousand, one hundred sixty".