265332678016 has 128 divisors (see below), whose sum is σ = 643785615360. Its totient is φ = 106455275520.

The previous prime is 265332677963. The next prime is 265332678019. The reversal of 265332678016 is 610876233562.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265332678019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831606 + ... + 1105546.

It is an arithmetic number, because the mean of its divisors is an integer number (5029575120).

Almost surely, 2^265332678016 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 265332678016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321892807680).

265332678016 is an abundant number, since it is smaller than the sum of its proper divisors (378452937344).

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

265332678016 is a wasteful number, since it uses less digits than its factorization.

265332678016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274032 (or 274020 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 265332678016 in words is "two hundred sixty-five billion, three hundred thirty-two million, six hundred seventy-eight thousand, sixteen".