16316645 has 8 divisors (see below), whose sum is σ = 19641120. Its totient is φ = 13012560.

The previous prime is 16316623. The next prime is 16316653. The reversal of 16316645 is 54661361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-16316645 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3275 + ... + 6584.

It is an arithmetic number, because the mean of its divisors is an integer number (2455140).

Almost surely, 2^16316645 is an apocalyptic number.

It is an amenable number.

16316645 is a deficient number, since it is larger than the sum of its proper divisors (3324475).

16316645 is an equidigital number, since it uses as much as digits as its factorization.

16316645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195.

The product of its digits is 12960, while the sum is 32.

The square root of 16316645 is about 4039.3867108758. The cubic root of 16316645 is about 253.6356453675.

It can be divided in two parts, 16316 and 645, that added together give a palindrome (16961).

The spelling of 16316645 in words is "sixteen million, three hundred sixteen thousand, six hundred forty-five".