265553212112 has 80 divisors (see below), whose sum is σ = 544874084160. Its totient is φ = 125027629056.

The previous prime is 265553212103. The next prime is 265553212123. The reversal of 265553212112 is 211212355562.

It is a happy number.

265553212112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 36458423 + ... + 36465705.

It is an arithmetic number, because the mean of its divisors is an integer number (6810926052).

Almost surely, 2^265553212112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265553212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272437042080).

265553212112 is an abundant number, since it is smaller than the sum of its proper divisors (279320872048).

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

265553212112 is a wasteful number, since it uses less digits than its factorization.

265553212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020 (or 8014 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

Adding to 265553212112 its reverse (211212355562), we get a palindrome (476765567674).

The spelling of 265553212112 in words is "two hundred sixty-five billion, five hundred fifty-three million, two hundred twelve thousand, one hundred twelve".