5566666221111 has 8 divisors (see below), whose sum is σ = 7858822900464. Its totient is φ = 3492810177920.

The previous prime is 5566666221023. The next prime is 5566666221119. The reversal of 5566666221111 is 1111226666655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5566666221111 - 2²⁶ = 5566599112247 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566666221119) by changing a digit.

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, 54575158980 + ... + 54575159081.

It is an arithmetic number, because the mean of its divisors is an integer number (982352862558).

Almost surely, 2^{5566666221111} is an apocalyptic number.

5566666221111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5566666221111 is a deficient number, since it is larger than the sum of its proper divisors (2292156679353).

5566666221111 is a wasteful number, since it uses less digits than its factorization.

5566666221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109150318081.

The product of its digits is 777600, while the sum is 48.

The spelling of 5566666221111 in words is "five trillion, five hundred sixty-six billion, six hundred sixty-six million, two hundred twenty-one thousand, one hundred eleven".