16316643 has 8 divisors (see below), whose sum is σ = 24863488. Its totient is φ = 9323784.

The previous prime is 16316623. The next prime is 16316653. The reversal of 16316643 is 34661361.

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

It is not a de Polignac number, because 16316643 - 2¹⁴ = 16300259 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16316643.

It is not an unprimeable number, because it can be changed into a prime (16316603) 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, 388471 + ... + 388512.

It is an arithmetic number, because the mean of its divisors is an integer number (3107936).

Almost surely, 2^16316643 is an apocalyptic number.

16316643 is a deficient number, since it is larger than the sum of its proper divisors (8546845).

16316643 is an equidigital number, since it uses as much as digits as its factorization.

16316643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776993.

The product of its digits is 7776, while the sum is 30.

The square root of 16316643 is about 4039.3864633135. The cubic root of 16316643 is about 253.6356350045.

The spelling of 16316643 in words is "sixteen million, three hundred sixteen thousand, six hundred forty-three".