16557112 has 64 divisors (see below), whose sum is σ = 37467360. Its totient is φ = 6758400.

The previous prime is 16557103. The next prime is 16557119. The reversal of 16557112 is 21175561.

16557112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

Its product of digits (2100) is a multiple of the sum of its prime divisors (420).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16557119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46728 + ... + 47080.

Almost surely, 2^16557112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16557112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18733680).

16557112 is an abundant number, since it is smaller than the sum of its proper divisors (20910248).

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

16557112 is a wasteful number, since it uses less digits than its factorization.

16557112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 420 counting only the distinct ones).

The product of its digits is 2100, while the sum is 28.

The square root of 16557112 is about 4069.0431307618. The cubic root of 16557112 is about 254.8755614812.

The spelling of 16557112 in words is "sixteen million, five hundred fifty-seven thousand, one hundred twelve".