11565817118043 has 16 divisors (see below), whose sum is σ = 15983177321760. Its totient is φ = 7433324557056.

The previous prime is 11565817118029. The next prime is 11565817118099. The reversal of 11565817118043 is 34081171856511.

It is a happy number.

It is not a de Polignac number, because 11565817118043 - 2⁴ = 11565817118027 is a prime.

It is a super-2 number, since 2×11565817118043² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11565817118543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477953730 + ... + 477977927.

It is an arithmetic number, because the mean of its divisors is an integer number (998948582610).

Almost surely, 2^{11565817118043} is an apocalyptic number.

11565817118043 is a deficient number, since it is larger than the sum of its proper divisors (4417360203717).

11565817118043 is a wasteful number, since it uses less digits than its factorization.

11565817118043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955931806.

The product of its (nonzero) digits is 806400, while the sum is 51.

The spelling of 11565817118043 in words is "eleven trillion, five hundred sixty-five billion, eight hundred seventeen million, one hundred eighteen thousand, forty-three".