218216619180 has 576 divisors, whose sum is σ = 825684787200. Its totient is φ = 45523192320.

The previous prime is 218216619169. The next prime is 218216619197. The reversal of 218216619180 is 81916612812.

It is a happy number.

218216619180 is a `hidden beast` number, since 2 + 1 + 8 + 2 + 16 + 619 + 18 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 210025101 + ... + 210026139.

Almost surely, 2^218216619180 is an apocalyptic number.

218216619180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218216619180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412842393600).

218216619180 is an abundant number, since it is smaller than the sum of its proper divisors (607468168020).

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

218216619180 is a wasteful number, since it uses less digits than its factorization.

218216619180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 218216619180 in words is "two hundred eighteen billion, two hundred sixteen million, six hundred nineteen thousand, one hundred eighty".