16009899 has 8 divisors (see below), whose sum is σ = 21373440. Its totient is φ = 10659816.

The previous prime is 16009879. The next prime is 16009907. The reversal of 16009899 is 99890061.

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

It is not a de Polignac number, because 16009899 - 2⁹ = 16009387 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16009899.

It is not an unprimeable number, because it can be changed into a prime (16009879) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 147 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (2671680).

Almost surely, 2^16009899 is an apocalyptic number.

16009899 is a deficient number, since it is larger than the sum of its proper divisors (5363541).

16009899 is an equidigital number, since it uses as much as digits as its factorization.

16009899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 16009899 is about 4001.2371836721. The cubic root of 16009899 is about 252.0361657593.

The spelling of 16009899 in words is "sixteen million, nine thousand, eight hundred ninety-nine".