16057566 has 48 divisors (see below), whose sum is σ = 41054208. Its totient is φ = 4438800.

The previous prime is 16057549. The next prime is 16057567. The reversal of 16057566 is 66575061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16057566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16057567) 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 23 ways as a sum of consecutive naturals, for example, 1851 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (855296).

Almost surely, 2^16057566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16057566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20527104).

16057566 is an abundant number, since it is smaller than the sum of its proper divisors (24996642).

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

16057566 is a wasteful number, since it uses less digits than its factorization.

16057566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4154 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 16057566 is about 4007.1892892650. The cubic root of 16057566 is about 252.2860508358.

The spelling of 16057566 in words is "sixteen million, fifty-seven thousand, five hundred sixty-six".