5666111001111 has 16 divisors (see below), whose sum is σ = 8241716383488. Its totient is φ = 3433964841600.

The previous prime is 5666111001079. The next prime is 5666111001119. The reversal of 5666111001111 is 1111001116665.

It is not a de Polignac number, because 5666111001111 - 2⁵ = 5666111001079 is a prime.

It is a super-2 number, since 2×5666111001111² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666111001119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822191 + ... + 3827871.

It is an arithmetic number, because the mean of its divisors is an integer number (515107273968).

Almost surely, 2^{5666111001111} is an apocalyptic number.

5666111001111 is a deficient number, since it is larger than the sum of its proper divisors (2575605382377).

5666111001111 is a wasteful number, since it uses less digits than its factorization.

5666111001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091302.

The product of its (nonzero) digits is 1080, while the sum is 30.

Adding to 5666111001111 its reverse (1111001116665), we get a palindrome (6777112117776).

The spelling of 5666111001111 in words is "five trillion, six hundred sixty-six billion, one hundred eleven million, one thousand, one hundred eleven".