1218540332304 has 60 divisors (see below), whose sum is σ = 3558490980096. Its totient is φ = 388520104896.

The previous prime is 1218540332257. The next prime is 1218540332311. The reversal of 1218540332304 is 4032330458121.

1218540332304 is a `hidden beast` number, since 1 + 2 + 18 + 5 + 4 + 0 + 332 + 304 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183955072 + ... + 183961695.

Almost surely, 2^{1218540332304} is an apocalyptic number.

It is an amenable number.

1218540332304 is an abundant number, since it is smaller than the sum of its proper divisors (2339950647792).

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

1218540332304 is a wasteful number, since it uses less digits than its factorization.

1218540332304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367916804 (or 367916795 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 1218540332304 in words is "one trillion, two hundred eighteen billion, five hundred forty million, three hundred thirty-two thousand, three hundred four".