11566110201 has 16 divisors (see below), whose sum is σ = 16206615744. Its totient is φ = 7327865664.

The previous prime is 11566110181. The next prime is 11566110203. The reversal of 11566110201 is 10201166511.

It is not a de Polignac number, because 11566110201 - 2⁵ = 11566110169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11566110203) by changing a digit.

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, 1206846 + ... + 1216391.

It is an arithmetic number, because the mean of its divisors is an integer number (1012913484).

Almost surely, 2^11566110201 is an apocalyptic number.

It is an amenable number.

11566110201 is a deficient number, since it is larger than the sum of its proper divisors (4640505543).

11566110201 is a wasteful number, since it uses less digits than its factorization.

11566110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423320.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 11566110201 its reverse (10201166511), we get a palindrome (21767276712).

The spelling of 11566110201 in words is "eleven billion, five hundred sixty-six million, one hundred ten thousand, two hundred one".