16045506 has 32 divisors (see below), whose sum is σ = 36002880. Its totient is φ = 5296608.

The previous prime is 16045489. The next prime is 16045511. The reversal of 16045506 is 60554061.

It is a happy number.

16045506 is a `hidden beast` number, since 1 + 604 + 5 + 50 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16045506.

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 15 ways as a sum of consecutive naturals, for example, 4390 + ... + 7166.

It is an arithmetic number, because the mean of its divisors is an integer number (1125090).

Almost surely, 2^16045506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16045506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18001440).

16045506 is an abundant number, since it is smaller than the sum of its proper divisors (19957374).

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

16045506 is a wasteful number, since it uses less digits than its factorization.

16045506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 16045506 is about 4005.6842112179. The cubic root of 16045506 is about 252.2228753874. Note that the first 3 decimals are identical.

Adding to 16045506 its reverse (60554061), we get a palindrome (76599567).

The spelling of 16045506 in words is "sixteen million, forty-five thousand, five hundred six".