216579265218328 has 8 divisors (see below), whose sum is σ = 406086122284380. Its totient is φ = 108289632609160.

The previous prime is 216579265218269. The next prime is 216579265218397. The reversal of 216579265218328 is 823812562975612.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13536204076138 + ... + 13536204076153.

Almost surely, 2^{216579265218328} is an apocalyptic number.

It is an amenable number.

216579265218328 is a deficient number, since it is larger than the sum of its proper divisors (189506857066052).

216579265218328 is a wasteful number, since it uses less digits than its factorization.

216579265218328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27072408152297 (or 27072408152293 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 67.

The spelling of 216579265218328 in words is "two hundred sixteen trillion, five hundred seventy-nine billion, two hundred sixty-five million, two hundred eighteen thousand, three hundred twenty-eight".