11555405013 has 8 divisors (see below), whose sum is σ = 15451609248. Its totient is φ = 7681402064.

The previous prime is 11555404981. The next prime is 11555405021. The reversal of 11555405013 is 31050455511.

11555405013 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 a cyclic number.

It is not a de Polignac number, because 11555405013 - 2⁵ = 11555404981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555405023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5549106 + ... + 5551187.

It is an arithmetic number, because the mean of its divisors is an integer number (1931451156).

Almost surely, 2^11555405013 is an apocalyptic number.

It is an amenable number.

11555405013 is a deficient number, since it is larger than the sum of its proper divisors (3896204235).

11555405013 is a wasteful number, since it uses less digits than its factorization.

11555405013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100643.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 11555405013 in words is "eleven billion, five hundred fifty-five million, four hundred five thousand, thirteen".