16557338 has 16 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 7010016.

The previous prime is 16557323. The next prime is 16557391. The reversal of 16557338 is 83375561.

It is an unprimeable number.

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, 5963 + ... + 8286.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^16557338 is an apocalyptic number.

16557338 is a deficient number, since it is larger than the sum of its proper divisors (12170662).

16557338 is a wasteful number, since it uses less digits than its factorization.

16557338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14341.

The product of its digits is 75600, while the sum is 38.

The square root of 16557338 is about 4069.0709013238. The cubic root of 16557338 is about 254.8767211362.

The spelling of 16557338 in words is "sixteen million, five hundred fifty-seven thousand, three hundred thirty-eight".