265822649456 has 320 divisors, whose sum is σ = 668970516480. Its totient is φ = 99519114240.

The previous prime is 265822649437. The next prime is 265822649471. The reversal of 265822649456 is 654946228562.

It is a junction number, because it is equal to n+sod(n) for n = 265822649395 and 265822649404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 452849195 + ... + 452849781.

It is an arithmetic number, because the mean of its divisors is an integer number (2090532864).

Almost surely, 2^265822649456 is an apocalyptic number.

265822649456 is a gapful number since it is divisible by the number (26) 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 265822649456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334485258240).

265822649456 is an abundant number, since it is smaller than the sum of its proper divisors (403147867024).

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

265822649456 is a wasteful number, since it uses less digits than its factorization.

265822649456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 846 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 59.

The spelling of 265822649456 in words is "two hundred sixty-five billion, eight hundred twenty-two million, six hundred forty-nine thousand, four hundred fifty-six".