16434221266 has 32 divisors (see below), whose sum is σ = 27487451520. Its totient is φ = 7323436800.

The previous prime is 16434221261. The next prime is 16434221311. The reversal of 16434221266 is 66212243461.

16434221266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16434221261) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1973251 + ... + 1981561.

It is an arithmetic number, because the mean of its divisors is an integer number (858982860).

Almost surely, 2^16434221266 is an apocalyptic number.

16434221266 is a deficient number, since it is larger than the sum of its proper divisors (11053230254).

16434221266 is a wasteful number, since it uses less digits than its factorization.

16434221266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410.

The product of its digits is 82944, while the sum is 37.

The spelling of 16434221266 in words is "sixteen billion, four hundred thirty-four million, two hundred twenty-one thousand, two hundred sixty-six".