216685103822 has 24 divisors (see below), whose sum is σ = 359989045416. Its totient is φ = 97741358000.

The previous prime is 216685103819. The next prime is 216685103839. The reversal of 216685103822 is 228301586612.

216685103822 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3385829 + ... + 3449232.

It is an arithmetic number, because the mean of its divisors is an integer number (14999543559).

Almost surely, 2^216685103822 is an apocalyptic number.

216685103822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216685103822 is a deficient number, since it is larger than the sum of its proper divisors (143303941594).

216685103822 is a wasteful number, since it uses less digits than its factorization.

216685103822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835216 (or 6835205 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 216685103822 in words is "two hundred sixteen billion, six hundred eighty-five million, one hundred three thousand, eight hundred twenty-two".