220242541664 has 12 divisors (see below), whose sum is σ = 433602503964. Its totient is φ = 110121270816.

The previous prime is 220242541583. The next prime is 220242541679. The reversal of 220242541664 is 466145242022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3441289682 + ... + 3441289745.

It is an arithmetic number, because the mean of its divisors is an integer number (36133541997).

Almost surely, 2^220242541664 is an apocalyptic number.

It is an amenable number.

220242541664 is a deficient number, since it is larger than the sum of its proper divisors (213359962300).

220242541664 is an equidigital number, since it uses as much as digits as its factorization.

220242541664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882579437 (or 6882579429 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 220242541664 its reverse (466145242022), we get a palindrome (686387783686).

The spelling of 220242541664 in words is "two hundred twenty billion, two hundred forty-two million, five hundred forty-one thousand, six hundred sixty-four".