218040560604 has 18 divisors (see below), whose sum is σ = 551158083840. Its totient is φ = 72680186856.

The previous prime is 218040560567. The next prime is 218040560669. The reversal of 218040560604 is 406065040812.

218040560604 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 40 + 5 + 6 + 0 + 604 = 666.

218040560604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6056682239 = 218040560604 / (2 + 1 + 8 + 0 + 4 + 0 + 5 + 6 + 0 + 6 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3028341084 + ... + 3028341155.

Almost surely, 2^218040560604 is an apocalyptic number.

It is an amenable number.

218040560604 is an abundant number, since it is smaller than the sum of its proper divisors (333117523236).

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

218040560604 is a wasteful number, since it uses less digits than its factorization.

218040560604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056682249 (or 6056682244 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

It can be divided in two parts, 2180405 and 60604, that added together give a square (2241009 = 1497²).

The spelling of 218040560604 in words is "two hundred eighteen billion, forty million, five hundred sixty thousand, six hundred four".