11500661061152 has 96 divisors (see below), whose sum is σ = 23053855708800. Its totient is φ = 5646058629120.

The previous prime is 11500661061151. The next prime is 11500661061251. The reversal of 11500661061152 is 25116016600511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11500661061151) 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, 3771943724 + ... + 3771946772.

It is an arithmetic number, because the mean of its divisors is an integer number (240144330300).

Almost surely, 2^{11500661061152} 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 11500661061152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11526927854400).

11500661061152 is an abundant number, since it is smaller than the sum of its proper divisors (11553194647648).

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

11500661061152 is a wasteful number, since it uses less digits than its factorization.

11500661061152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

Adding to 11500661061152 its reverse (25116016600511), we get a palindrome (36616677661663).

The spelling of 11500661061152 in words is "eleven trillion, five hundred billion, six hundred sixty-one million, sixty-one thousand, one hundred fifty-two".