11557675511 has 4 divisors (see below), whose sum is σ = 11559017400. Its totient is φ = 11556333624.

The previous prime is 11557675499. The next prime is 11557675537.

11557675511 is nontrivially palindromic in base 10.

11557675511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11557675511 - 2³⁰ = 10483933687 is a prime.

It is a super-2 number, since 2×11557675511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557675211) 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 3 ways as a sum of consecutive naturals, for example, 657941 + ... + 675278.

It is an arithmetic number, because the mean of its divisors is an integer number (2889754350).

Almost surely, 2^11557675511 is an apocalyptic number.

11557675511 is a deficient number, since it is larger than the sum of its proper divisors (1341889).

11557675511 is an equidigital number, since it uses as much as digits as its factorization.

11557675511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341888.

The product of its digits is 183750, while the sum is 44.

The spelling of 11557675511 in words is "eleven billion, five hundred fifty-seven million, six hundred seventy-five thousand, five hundred eleven".