556167881 has 8 divisors (see below), whose sum is σ = 560453184. Its totient is φ = 551890800.

The previous prime is 556167851. The next prime is 556167883. The reversal of 556167881 is 188761655.

It is a happy number.

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 556167881 - 2¹⁰ = 556166857 is a prime.

It is a super-2 number, since 2×556167881² = 618645423712060322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556167883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224210 + ... + 226676.

It is an arithmetic number, because the mean of its divisors is an integer number (70056648).

Almost surely, 2^556167881 is an apocalyptic number.

It is an amenable number.

556167881 is a deficient number, since it is larger than the sum of its proper divisors (4285303).

556167881 is a wasteful number, since it uses less digits than its factorization.

556167881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111.

The product of its digits is 403200, while the sum is 47.

The square root of 556167881 is about 23583.2118465658. The cubic root of 556167881 is about 822.3726054298.

The spelling of 556167881 in words is "five hundred fifty-six million, one hundred sixty-seven thousand, eight hundred eighty-one".