218821350058 has 16 divisors (see below), whose sum is σ = 335879881920. Its totient is φ = 106861610016.

The previous prime is 218821350047. The next prime is 218821350061. The reversal of 218821350058 is 850053128812.

218821350058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×218821350058³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 218821349996 and 218821350023.

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, 2789598 + ... + 2866966.

It is an arithmetic number, because the mean of its divisors is an integer number (20992492620).

Almost surely, 2^218821350058 is an apocalyptic number.

218821350058 is a deficient number, since it is larger than the sum of its proper divisors (117058531862).

218821350058 is a wasteful number, since it uses less digits than its factorization.

218821350058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110301.

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 218821350058 in words is "two hundred eighteen billion, eight hundred twenty-one million, three hundred fifty thousand, fifty-eight".