16636345 has 16 divisors (see below), whose sum is σ = 21954240. Its totient is φ = 12001600.

The previous prime is 16636327. The next prime is 16636349. The reversal of 16636345 is 54363661.

It is not a de Polignac number, because 16636345 - 2⁹ = 16635833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16636345.

It is not an unprimeable number, because it can be changed into a prime (16636349) by changing a digit.

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, 6051 + ... + 8359.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140).

Almost surely, 2^16636345 is an apocalyptic number.

It is an amenable number.

16636345 is a deficient number, since it is larger than the sum of its proper divisors (5317895).

16636345 is a wasteful number, since it uses less digits than its factorization.

16636345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its digits is 38880, while the sum is 34.

The square root of 16636345 is about 4078.7675834742. The cubic root of 16636345 is about 255.2814782353.

It can be divided in two parts, 1663 and 6345, that added together give a palindrome (8008).

The spelling of 16636345 in words is "sixteen million, six hundred thirty-six thousand, three hundred forty-five".