221160117918 has 8 divisors (see below), whose sum is σ = 442320235848. Its totient is φ = 73720039304.

The previous prime is 221160117911. The next prime is 221160117967. The reversal of 221160117918 is 819711061122.

It is a sphenic number, since it is the product of 3 distinct primes.

221160117918 is an admirable number.

It is a super-3 number, since 3×221160117918³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221160117911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18430009821 + ... + 18430009832.

It is an arithmetic number, because the mean of its divisors is an integer number (55290029481).

Almost surely, 2^221160117918 is an apocalyptic number.

221160117918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221160117918 is a wasteful number, since it uses less digits than its factorization.

221160117918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36860019658.

The product of its (nonzero) digits is 12096, while the sum is 39.

The spelling of 221160117918 in words is "two hundred twenty-one billion, one hundred sixty million, one hundred seventeen thousand, nine hundred eighteen".