5611111164 has 24 divisors (see below), whose sum is σ = 14547325520. Its totient is φ = 1870370352.

The previous prime is 5611111159. The next prime is 5611111189. The reversal of 5611111164 is 4611111165.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 25977259 + ... + 25977474.

Almost surely, 2^5611111164 is an apocalyptic number.

5611111164 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5611111164 is an abundant number, since it is smaller than the sum of its proper divisors (8936214356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5611111164 is a wasteful number, since it uses less digits than its factorization.

5611111164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51954746 (or 51954738 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 5611111164 is about 74907.3505338428. The cubic root of 5611111164 is about 1776.9817093462.

Subtracting from 5611111164 its reverse (4611111165), we obtain a palindrome (999999999).

The spelling of 5611111164 in words is "five billion, six hundred eleven million, one hundred eleven thousand, one hundred sixty-four".