11056166610505 has 16 divisors (see below), whose sum is σ = 13289163019920. Its totient is φ = 8830428622848.

The previous prime is 11056166610491. The next prime is 11056166610521. The reversal of 11056166610505 is 50501666165011.

It can be written as a sum of positive squares in 8 ways, for example, as 2003433592329 + 9052733018176 = 1415427^2 + 3008776^2 .

It is a cyclic number.

It is not a de Polignac number, because 11056166610505 - 2³³ = 11047576675913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21854599 + ... + 22354771.

It is an arithmetic number, because the mean of its divisors is an integer number (830572688745).

Almost surely, 2^{11056166610505} is an apocalyptic number.

It is an amenable number.

11056166610505 is a deficient number, since it is larger than the sum of its proper divisors (2232996409415).

11056166610505 is an equidigital number, since it uses as much as digits as its factorization.

11056166610505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507420.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 11056166610505 in words is "eleven trillion, fifty-six billion, one hundred sixty-six million, six hundred ten thousand, five hundred five".