16805016 has 32 divisors (see below), whose sum is σ = 46681200. Its totient is φ = 5601600.

The previous prime is 16805011. The next prime is 16805023. The reversal of 16805016 is 61050861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16805011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38685 + ... + 39116.

Almost surely, 2^16805016 is an apocalyptic number.

It is an amenable number.

16805016 is an abundant number, since it is smaller than the sum of its proper divisors (29876184).

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

16805016 is a wasteful number, since it uses less digits than its factorization.

16805016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77816 (or 77806 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 16805016 is about 4099.3921500632. The cubic root of 16805016 is about 256.1413200845.

Adding to 16805016 its reverse (61050861), we get a palindrome (77855877).

The spelling of 16805016 in words is "sixteen million, eight hundred five thousand, sixteen".