216655020022 has 16 divisors (see below), whose sum is σ = 371867721120. Its totient is φ = 92737372608.

The previous prime is 216655019989. The next prime is 216655020047. The reversal of 216655020022 is 220020556612.

It is a happy number.

216655020022 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9553173 + ... + 9575824.

It is an arithmetic number, because the mean of its divisors is an integer number (23241732570).

Almost surely, 2^216655020022 is an apocalyptic number.

216655020022 is a deficient number, since it is larger than the sum of its proper divisors (155212701098).

216655020022 is a wasteful number, since it uses less digits than its factorization.

216655020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129815.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 216655020022 its reverse (220020556612), we get a palindrome (436675576634).

The spelling of 216655020022 in words is "two hundred sixteen billion, six hundred fifty-five million, twenty thousand, twenty-two".