216353483621604 has 72 divisors (see below), whose sum is σ = 625024909483520. Its totient is φ = 61814911681152.

The previous prime is 216353483621581. The next prime is 216353483621629. The reversal of 216353483621604 is 406126384353612.

216353483621604 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 5 + 3 + 4 + 8 + 3 + 6 + 21 + 604 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41170317 + ... + 46127019.

Almost surely, 2^{216353483621604} is an apocalyptic number.

It is an amenable number.

216353483621604 is an abundant number, since it is smaller than the sum of its proper divisors (408671425861916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216353483621604 is a wasteful number, since it uses less digits than its factorization.

216353483621604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129929 (or 5129924 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 54.

The spelling of 216353483621604 in words is "two hundred sixteen trillion, three hundred fifty-three billion, four hundred eighty-three million, six hundred twenty-one thousand, six hundred four".