618220071112 has 32 divisors (see below), whose sum is σ = 1402684197120. Its totient is φ = 249366078720.

The previous prime is 618220071083. The next prime is 618220071113. The reversal of 618220071112 is 211170022816.

It is not an unprimeable number, because it can be changed into a prime (618220071113) by changing a digit.

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, 324694464 + ... + 324696367.

It is an arithmetic number, because the mean of its divisors is an integer number (43833881160).

Almost surely, 2^618220071112 is an apocalyptic number.

It is an amenable number.

618220071112 is an abundant number, since it is smaller than the sum of its proper divisors (784464126008).

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

618220071112 is a wasteful number, since it uses less digits than its factorization.

618220071112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649390861 (or 649390857 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 618220071112 its reverse (211170022816), we get a palindrome (829390093928).

The spelling of 618220071112 in words is "six hundred eighteen billion, two hundred twenty million, seventy-one thousand, one hundred twelve".