558166421 has 8 divisors (see below), whose sum is σ = 564574080. Its totient is φ = 551772288.

The previous prime is 558166391. The next prime is 558166487. The reversal of 558166421 is 124661855.

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 558166421 - 2¹⁰ = 558165397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (558166121) 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, 96020 + ... + 101666.

It is an arithmetic number, because the mean of its divisors is an integer number (70571760).

Almost surely, 2^558166421 is an apocalyptic number.

It is an amenable number.

558166421 is a deficient number, since it is larger than the sum of its proper divisors (6407659).

558166421 is a wasteful number, since it uses less digits than its factorization.

558166421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6763.

The product of its digits is 57600, while the sum is 38.

The square root of 558166421 is about 23625.5459407820. The cubic root of 558166421 is about 823.3564689236.

The spelling of 558166421 in words is "five hundred fifty-eight million, one hundred sixty-six thousand, four hundred twenty-one".