556111166 has 8 divisors (see below), whose sum is σ = 898333464. Its totient is φ = 256666680.

The previous prime is 556111141. The next prime is 556111219. The reversal of 556111166 is 661111655.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10694420 + ... + 10694471.

It is an arithmetic number, because the mean of its divisors is an integer number (112291683).

Almost surely, 2^556111166 is an apocalyptic number.

556111166 is a deficient number, since it is larger than the sum of its proper divisors (342222298).

556111166 is a wasteful number, since it uses less digits than its factorization.

556111166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21388906.

The product of its digits is 5400, while the sum is 32.

The square root of 556111166 is about 23582.0093715527. The cubic root of 556111166 is about 822.3446507723.

The spelling of 556111166 in words is "five hundred fifty-six million, one hundred eleven thousand, one hundred sixty-six".