16558042 has 8 divisors (see below), whose sum is σ = 24897600. Its totient is φ = 8258844.

The previous prime is 16558033. The next prime is 16558067. The reversal of 16558042 is 24085561.

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

It is a junction number, because it is equal to n+sod(n) for n = 16557995 and 16558013.

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, 9042 + ... + 10717.

It is an arithmetic number, because the mean of its divisors is an integer number (3112200).

Almost surely, 2^16558042 is an apocalyptic number.

16558042 is a deficient number, since it is larger than the sum of its proper divisors (8339558).

16558042 is a wasteful number, since it uses less digits than its factorization.

16558042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20180.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 16558042 is about 4069.1574066384. The cubic root of 16558042 is about 254.8803334453.

The spelling of 16558042 in words is "sixteen million, five hundred fifty-eight thousand, forty-two".