218350533144 has 32 divisors (see below), whose sum is σ = 549860839920. Its totient is φ = 72252243456.

The previous prime is 218350533101. The next prime is 218350533161. The reversal of 218350533144 is 441335053812.

218350533144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33200869 + ... + 33207444.

Almost surely, 2^218350533144 is an apocalyptic number.

218350533144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

218350533144 is an abundant number, since it is smaller than the sum of its proper divisors (331510306776).

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

218350533144 is a wasteful number, since it uses less digits than its factorization.

218350533144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66408459 (or 66408455 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 218350533144 its reverse (441335053812), we get a palindrome (659685586956).

The spelling of 218350533144 in words is "two hundred eighteen billion, three hundred fifty million, five hundred thirty-three thousand, one hundred forty-four".