6566120111 has 8 divisors (see below), whose sum is σ = 7080284400. Its totient is φ = 6068813760.

The previous prime is 6566120087. The next prime is 6566120153. The reversal of 6566120111 is 1110216656.

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 6566120111 - 2¹⁸ = 6565857967 is a prime.

It is a super-2 number, since 2×6566120111² = 86227866624157304642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6566120161) 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, 4213676 + ... + 4215233.

It is an arithmetic number, because the mean of its divisors is an integer number (885035550).

Almost surely, 2^6566120111 is an apocalyptic number.

6566120111 is a deficient number, since it is larger than the sum of its proper divisors (514164289).

6566120111 is a wasteful number, since it uses less digits than its factorization.

6566120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428969.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 6566120111 is about 81031.5994597169. The cubic root of 6566120111 is about 1872.5622944654.

Adding to 6566120111 its reverse (1110216656), we get a palindrome (7676336767).

The spelling of 6566120111 in words is "six billion, five hundred sixty-six million, one hundred twenty thousand, one hundred eleven".