265245425664 has 76 divisors (see below), whose sum is σ = 707321883144. Its totient is φ = 88414879744.

The previous prime is 265245425663. The next prime is 265245425671. The reversal of 265245425664 is 466524542562.

265245425664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265245425663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617794 + ... + 955070.

Almost surely, 2^265245425664 is an apocalyptic number.

265245425664 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 265245425664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353660941572).

265245425664 is an abundant number, since it is smaller than the sum of its proper divisors (442076457480).

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

265245425664 is an frugal number, since it uses more digits than its factorization.

265245425664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337316 (or 337282 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 51.

The spelling of 265245425664 in words is "two hundred sixty-five billion, two hundred forty-five million, four hundred twenty-five thousand, six hundred sixty-four".