216689364107853 has 48 divisors (see below), whose sum is σ = 358018934173056. Its totient is φ = 114146697450240.

The previous prime is 216689364107833. The next prime is 216689364107861. The reversal of 216689364107853 is 358701463986612.

It is not a de Polignac number, because 216689364107853 - 2⁹ = 216689364107341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216689364107833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37641318 + ... + 43014503.

It is an arithmetic number, because the mean of its divisors is an integer number (7458727795272).

It is a 1-persistent number, because it is pandigital, but 2⋅216689364107853 = 433378728215706 is not.

Almost surely, 2^{216689364107853} is an apocalyptic number.

It is an amenable number.

216689364107853 is a deficient number, since it is larger than the sum of its proper divisors (141329570065203).

216689364107853 is a wasteful number, since it uses less digits than its factorization.

216689364107853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80656614 (or 80656601 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 216689364107853 in words is "two hundred sixteen trillion, six hundred eighty-nine billion, three hundred sixty-four million, one hundred seven thousand, eight hundred fifty-three".