16786961105 has 4 divisors (see below), whose sum is σ = 20144353332. Its totient is φ = 13429568880.

The previous prime is 16786961077. The next prime is 16786961129. The reversal of 16786961105 is 50116968761.

16786961105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3321447424 + 13465513681 = 57632^2 + 116041^2 .

It is not a de Polignac number, because 16786961105 - 2¹⁸ = 16786698961 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1678696106 + ... + 1678696115.

It is an arithmetic number, because the mean of its divisors is an integer number (5036088333).

Almost surely, 2^16786961105 is an apocalyptic number.

It is an amenable number.

16786961105 is a deficient number, since it is larger than the sum of its proper divisors (3357392227).

16786961105 is an equidigital number, since it uses as much as digits as its factorization.

16786961105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357392226.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 16786961105 in words is "sixteen billion, seven hundred eighty-six million, nine hundred sixty-one thousand, one hundred five".