11415320512 has 112 divisors (see below), whose sum is σ = 23782528000. Its totient is φ = 5431256064.

The previous prime is 11415320507. The next prime is 11415320537. The reversal of 11415320512 is 21502351411.

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, 26002789 + ... + 26003227.

It is an arithmetic number, because the mean of its divisors is an integer number (212344000).

Almost surely, 2^11415320512 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 11415320512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11891264000).

11415320512 is an abundant number, since it is smaller than the sum of its proper divisors (12367207488).

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

11415320512 is a wasteful number, since it uses less digits than its factorization.

11415320512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11415320512 its reverse (21502351411), we get a palindrome (32917671923).

The spelling of 11415320512 in words is "eleven billion, four hundred fifteen million, three hundred twenty thousand, five hundred twelve".