11056165689 has 4 divisors (see below), whose sum is σ = 14741554256. Its totient is φ = 7370777124.

The previous prime is 11056165661. The next prime is 11056165763. The reversal of 11056165689 is 98656165011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11056165689 - 2⁹ = 11056165177 is a prime.

It is a super-3 number, since 3×11056165689³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11056165789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842694279 + ... + 1842694284.

It is an arithmetic number, because the mean of its divisors is an integer number (3685388564).

Almost surely, 2^11056165689 is an apocalyptic number.

It is an amenable number.

11056165689 is a deficient number, since it is larger than the sum of its proper divisors (3685388567).

11056165689 is an equidigital number, since it uses as much as digits as its factorization.

11056165689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685388566.

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 11056165689 in words is "eleven billion, fifty-six million, one hundred sixty-five thousand, six hundred eighty-nine".