265440133224 has 144 divisors (see below), whose sum is σ = 836810114400. Its totient is φ = 75791225664.

The previous prime is 265440133207. The next prime is 265440133237. The reversal of 265440133224 is 422331044562.

265440133224 is a `hidden beast` number, since 2 + 65 + 440 + 133 + 2 + 24 = 666.

265440133224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 35 ways as a sum of consecutive naturals, for example, 5646087 + ... + 5692905.

It is an arithmetic number, because the mean of its divisors is an integer number (5811181350).

Almost surely, 2^265440133224 is an apocalyptic number.

265440133224 is a gapful number since it is divisible by the number (24) 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 265440133224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418405057200).

265440133224 is an abundant number, since it is smaller than the sum of its proper divisors (571369981176).

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

265440133224 is a wasteful number, since it uses less digits than its factorization.

265440133224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48452 (or 48438 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 265440133224 its reverse (422331044562), we get a palindrome (687771177786).

The spelling of 265440133224 in words is "two hundred sixty-five billion, four hundred forty million, one hundred thirty-three thousand, two hundred twenty-four".