11415023256 has 128 divisors (see below), whose sum is σ = 35446118400. Its totient is φ = 2982873600.

The previous prime is 11415023237. The next prime is 11415023261. The reversal of 11415023256 is 65232051411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214081 + ... + 262031.

It is an arithmetic number, because the mean of its divisors is an integer number (276922800).

Almost surely, 2^11415023256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11415023256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17723059200).

11415023256 is an abundant number, since it is smaller than the sum of its proper divisors (24031095144).

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

11415023256 is a wasteful number, since it uses less digits than its factorization.

11415023256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48089 (or 48085 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 11415023256 its reverse (65232051411), we get a palindrome (76647074667).

The spelling of 11415023256 in words is "eleven billion, four hundred fifteen million, twenty-three thousand, two hundred fifty-six".