265113435020 has 48 divisors (see below), whose sum is σ = 636808677120. Its totient is φ = 90819401664.

The previous prime is 265113434951. The next prime is 265113435029. The reversal of 265113435020 is 20534311562.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (265113435029) 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, 631490 + ... + 963849.

It is an arithmetic number, because the mean of its divisors is an integer number (13266847440).

Almost surely, 2^265113435020 is an apocalyptic number.

265113435020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265113435020 is an abundant number, since it is smaller than the sum of its proper divisors (371695242100).

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

265113435020 is a wasteful number, since it uses less digits than its factorization.

265113435020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596542 (or 1596540 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 265113435020 its reverse (20534311562), we get a palindrome (285647746582).

The spelling of 265113435020 in words is "two hundred sixty-five billion, one hundred thirteen million, four hundred thirty-five thousand, twenty".