5611111166 has 16 divisors (see below), whose sum is σ = 8852105088. Its totient is φ = 2663824800.

The previous prime is 5611111159. The next prime is 5611111189. The reversal of 5611111166 is 6611111165.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 850505 + ... + 857076.

It is an arithmetic number, because the mean of its divisors is an integer number (553256568).

Almost surely, 2^5611111166 is an apocalyptic number.

5611111166 is a deficient number, since it is larger than the sum of its proper divisors (3240993922).

5611111166 is a wasteful number, since it uses less digits than its factorization.

5611111166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707667.

The product of its digits is 1080, while the sum is 29.

The square root of 5611111166 is about 74907.3505471926. The cubic root of 5611111166 is about 1776.9817095574.

Subtracting 5611111166 from its reverse (6611111165), we obtain a palindrome (999999999).

The spelling of 5611111166 in words is "five billion, six hundred eleven million, one hundred eleven thousand, one hundred sixty-six".