218245405050 has 96 divisors (see below), whose sum is σ = 601482187200. Its totient is φ = 58189596480.

The previous prime is 218245404967. The next prime is 218245405069. The reversal of 218245405050 is 50504542812.

218245405050 is a `hidden beast` number, since 2 + 1 + 8 + 245 + 405 + 0 + 5 + 0 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 218245404996 and 218245405014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15959616 + ... + 15973284.

It is an arithmetic number, because the mean of its divisors is an integer number (6265439450).

Almost surely, 2^218245405050 is an apocalyptic number.

218245405050 is an abundant number, since it is smaller than the sum of its proper divisors (383236782150).

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

218245405050 is a wasteful number, since it uses less digits than its factorization.

218245405050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25517 (or 25506 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 218245405050 its reverse (50504542812), we get a palindrome (268749947862).

The spelling of 218245405050 in words is "two hundred eighteen billion, two hundred forty-five million, four hundred five thousand, fifty".