216389935822 has 16 divisors (see below), whose sum is σ = 326679609312. Its totient is φ = 107496848160.

The previous prime is 216389935807. The next prime is 216389935877. The reversal of 216389935822 is 228539983612.

216389935822 is digitally balanced in base 3, 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5311743 + ... + 5352325.

It is an arithmetic number, because the mean of its divisors is an integer number (20417475582).

Almost surely, 2^216389935822 is an apocalyptic number.

216389935822 is a deficient number, since it is larger than the sum of its proper divisors (110289673490).

216389935822 is a wasteful number, since it uses less digits than its factorization.

216389935822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57723.

The product of its digits is 11197440, while the sum is 58.

The spelling of 216389935822 in words is "two hundred sixteen billion, three hundred eighty-nine million, nine hundred thirty-five thousand, eight hundred twenty-two".