265157929920 has 112 divisors (see below), whose sum is σ = 906636195360. Its totient is φ = 65269641216.

The previous prime is 265157929867. The next prime is 265157929921. The reversal of 265157929920 is 29929751562.

It is a happy number.

265157929920 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 (265157929921) 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, 10610835 + ... + 10635794.

It is an arithmetic number, because the mean of its divisors is an integer number (8094966030).

Almost surely, 2^265157929920 is an apocalyptic number.

265157929920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265157929920 is an abundant number, since it is smaller than the sum of its proper divisors (641478265440).

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

265157929920 is a wasteful number, since it uses less digits than its factorization.

265157929920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21246662 (or 21246652 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 265157929920 in words is "two hundred sixty-five billion, one hundred fifty-seven million, nine hundred twenty-nine thousand, nine hundred twenty".