16199030905 has 8 divisors (see below), whose sum is σ = 19441778184. Its totient is φ = 12957264000.

The previous prime is 16199030831. The next prime is 16199030923. The reversal of 16199030905 is 50903099161.

16199030905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3515541264 + 12683489641 = 59292^2 + 112621^2 .

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-16199030905 is a prime.

It is a super-2 number, since 2×16199030905² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 208236 + ... + 275245.

It is an arithmetic number, because the mean of its divisors is an integer number (2430222273).

Almost surely, 2^16199030905 is an apocalyptic number.

It is an amenable number.

16199030905 is a deficient number, since it is larger than the sum of its proper divisors (3242747279).

16199030905 is an equidigital number, since it uses as much as digits as its factorization.

16199030905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490187.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 16199030905 in words is "sixteen billion, one hundred ninety-nine million, thirty thousand, nine hundred five".