218432272101185 has 16 divisors (see below), whose sum is σ = 262238759452800. Its totient is φ = 174665814059520.

The previous prime is 218432272101149. The next prime is 218432272101187. The reversal of 218432272101185 is 581101272234812.

It is not a de Polignac number, because 218432272101185 - 2²⁰ = 218432271052609 is a prime.

It is a super-2 number, since 2×218432272101185² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (218432272101187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94542641 + ... + 96825489.

It is an arithmetic number, because the mean of its divisors is an integer number (16389922465800).

Almost surely, 2^{218432272101185} is an apocalyptic number.

It is an amenable number.

218432272101185 is a deficient number, since it is larger than the sum of its proper divisors (43806487351615).

218432272101185 is a wasteful number, since it uses less digits than its factorization.

218432272101185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291608.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 218432272101185 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred seventy-two million, one hundred one thousand, one hundred eighty-five".