265263130040 has 64 divisors (see below), whose sum is σ = 612972360000. Its totient is φ = 103250959360.

The previous prime is 265263130039. The next prime is 265263130079. The reversal of 265263130040 is 40031362562.

265263130040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 265263129979 and 265263130006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430061 + ... + 845859.

It is an arithmetic number, because the mean of its divisors is an integer number (9577693125).

Almost surely, 2^265263130040 is an apocalyptic number.

265263130040 is a gapful number since it is divisible by the number (20) 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 265263130040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306486180000).

265263130040 is an abundant number, since it is smaller than the sum of its proper divisors (347709229960).

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

265263130040 is a wasteful number, since it uses less digits than its factorization.

265263130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416240 (or 416236 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 265263130040 in words is "two hundred sixty-five billion, two hundred sixty-three million, one hundred thirty thousand, forty".