11505116241 has 24 divisors (see below), whose sum is σ = 16833623040. Its totient is φ = 7571082816.

The previous prime is 11505116237. The next prime is 11505116267. The reversal of 11505116241 is 14261150511.

11505116241 is a `hidden beast` number, since 1 + 1 + 50 + 511 + 62 + 41 = 666.

It is not a de Polignac number, because 11505116241 - 2² = 11505116237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11505116291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474376 + ... + 498038.

It is an arithmetic number, because the mean of its divisors is an integer number (701400960).

Almost surely, 2^11505116241 is an apocalyptic number.

It is an amenable number.

11505116241 is a deficient number, since it is larger than the sum of its proper divisors (5328506799).

11505116241 is a wasteful number, since it uses less digits than its factorization.

11505116241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24365 (or 24362 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 11505116241 its reverse (14261150511), we get a palindrome (25766266752).

The spelling of 11505116241 in words is "eleven billion, five hundred five million, one hundred sixteen thousand, two hundred forty-one".