556660111 has 8 divisors (see below), whose sum is σ = 640760960. Its totient is φ = 473703768.

The previous prime is 556660073. The next prime is 556660127. The reversal of 556660111 is 111066655.

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 556660111 - 2⁹ = 556659599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556663111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285081 + ... + 287026.

It is an arithmetic number, because the mean of its divisors is an integer number (80095120).

Almost surely, 2^556660111 is an apocalyptic number.

556660111 is a deficient number, since it is larger than the sum of its proper divisors (84100849).

556660111 is a wasteful number, since it uses less digits than its factorization.

556660111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572253.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 556660111 is about 23593.6455640073. The cubic root of 556660111 is about 822.6151443705.

The spelling of 556660111 in words is "five hundred fifty-six million, six hundred sixty thousand, one hundred eleven".