16166838 has 32 divisors (see below), whose sum is σ = 33970176. Its totient is φ = 5119488.

The previous prime is 16166827. The next prime is 16166879. The reversal of 16166838 is 83866161.

It is a super-2 number, since 2×16166838² = 522733301836488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16166796 and 16166805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26331 + ... + 26937.

It is an arithmetic number, because the mean of its divisors is an integer number (1061568).

Almost surely, 2^16166838 is an apocalyptic number.

16166838 is an abundant number, since it is smaller than the sum of its proper divisors (17803338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16166838 is a wasteful number, since it uses less digits than its factorization.

16166838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its digits is 41472, while the sum is 39.

The square root of 16166838 is about 4020.8006665340. The cubic root of 16166838 is about 252.8570278564.

The spelling of 16166838 in words is "sixteen million, one hundred sixty-six thousand, eight hundred thirty-eight".