16617979216 has 20 divisors (see below), whose sum is σ = 32222314624. Its totient is φ = 8302543200.

The previous prime is 16617979199. The next prime is 16617979241. The reversal of 16617979216 is 61297971661.

16617979216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 381600 + ... + 422911.

Almost surely, 2^16617979216 is an apocalyptic number.

16617979216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16617979216 is a deficient number, since it is larger than the sum of its proper divisors (15604335408).

16617979216 is a wasteful number, since it uses less digits than its factorization.

16617979216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805810 (or 805804 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 55.

The spelling of 16617979216 in words is "sixteen billion, six hundred seventeen million, nine hundred seventy-nine thousand, two hundred sixteen".