16117021612 has 12 divisors (see below), whose sum is σ = 28350927976. Its totient is φ = 8016756480.

The previous prime is 16117021607. The next prime is 16117021619. The reversal of 16117021612 is 21612071161.

16117021612 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 (16117021619) 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 3 ways as a sum of consecutive naturals, for example, 10437714 + ... + 10439257.

Almost surely, 2^16117021612 is an apocalyptic number.

It is an amenable number.

16117021612 is a deficient number, since it is larger than the sum of its proper divisors (12233906364).

16117021612 is a wasteful number, since it uses less digits than its factorization.

16117021612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20877168 (or 20877166 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 16117021612 its reverse (21612071161), we get a palindrome (37729092773).

The spelling of 16117021612 in words is "sixteen billion, one hundred seventeen million, twenty-one thousand, six hundred twelve".