11556424166 has 16 divisors (see below), whose sum is σ = 19814390304. Its totient is φ = 4951908864.

The previous prime is 11556424153. The next prime is 11556424177. The reversal of 11556424166 is 66142465511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18566 + ... + 153158.

It is an arithmetic number, because the mean of its divisors is an integer number (1238399394).

Almost surely, 2^11556424166 is an apocalyptic number.

11556424166 is a deficient number, since it is larger than the sum of its proper divisors (8257966138).

11556424166 is a wasteful number, since it uses less digits than its factorization.

11556424166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140735.

The product of its digits is 172800, while the sum is 41.

Adding to 11556424166 its reverse (66142465511), we get a palindrome (77698889677).

The spelling of 11556424166 in words is "eleven billion, five hundred fifty-six million, four hundred twenty-four thousand, one hundred sixty-six".