11511606550011 has 8 divisors (see below), whose sum is σ = 15372753835344. Its totient is φ = 7662431815680.

The previous prime is 11511606549979. The next prime is 11511606550013. The reversal of 11511606550011 is 11005560611511.

11511606550011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11511606550011 - 2⁵ = 11511606549979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11511606550013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2993135506 + ... + 2993139351.

It is an arithmetic number, because the mean of its divisors is an integer number (1921594229418).

Almost surely, 2^{11511606550011} is an apocalyptic number.

11511606550011 is a deficient number, since it is larger than the sum of its proper divisors (3861147285333).

11511606550011 is an equidigital number, since it uses as much as digits as its factorization.

11511606550011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986275501.

The product of its (nonzero) digits is 4500, while the sum is 33.

The spelling of 11511606550011 in words is "eleven trillion, five hundred eleven billion, six hundred six million, five hundred fifty thousand, eleven".