11554242185 has 16 divisors (see below), whose sum is σ = 15038754192. Its totient is φ = 8487475200.

The previous prime is 11554242173. The next prime is 11554242199. The reversal of 11554242185 is 58124245511.

It can be written as a sum of positive squares in 8 ways, for example, as 528402169 + 11025840016 = 22987^2 + 105004^2 .

It is not a de Polignac number, because 11554242185 - 2⁸ = 11554241929 is a prime.

It is a Duffinian number.

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, 1654226 + ... + 1661195.

It is an arithmetic number, because the mean of its divisors is an integer number (939922137).

Almost surely, 2^11554242185 is an apocalyptic number.

It is an amenable number.

11554242185 is a deficient number, since it is larger than the sum of its proper divisors (3484512007).

11554242185 is a wasteful number, since it uses less digits than its factorization.

11554242185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315484.

The product of its digits is 64000, while the sum is 38.

Adding to 11554242185 its reverse (58124245511), we get a palindrome (69678487696).

The spelling of 11554242185 in words is "eleven billion, five hundred fifty-four million, two hundred forty-two thousand, one hundred eighty-five".