11533551205 has 24 divisors (see below), whose sum is σ = 15244992000. Its totient is φ = 8370315360.

The previous prime is 11533551191. The next prime is 11533551223. The reversal of 11533551205 is 50215533511.

11533551205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11533551205 - 2¹³ = 11533543013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269896 + ... + 309694.

It is an arithmetic number, because the mean of its divisors is an integer number (635208000).

Almost surely, 2^11533551205 is an apocalyptic number.

It is an amenable number.

11533551205 is a deficient number, since it is larger than the sum of its proper divisors (3711440795).

11533551205 is a wasteful number, since it uses less digits than its factorization.

11533551205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40305 (or 40294 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 11533551205 in words is "eleven billion, five hundred thirty-three million, five hundred fifty-one thousand, two hundred five".