163604442223204 has 24 divisors (see below), whose sum is σ = 303256945928160. Its totient is φ = 76963014443136.

The previous prime is 163604442223181. The next prime is 163604442223297. The reversal of 163604442223204 is 402322244406361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426546102 + ... + 426929485.

It is an arithmetic number, because the mean of its divisors is an integer number (12635706080340).

Almost surely, 2^{163604442223204} is an apocalyptic number.

It is an amenable number.

163604442223204 is a deficient number, since it is larger than the sum of its proper divisors (139652503704956).

163604442223204 is a wasteful number, since it uses less digits than its factorization.

163604442223204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853478427 (or 853478425 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 43.

Adding to 163604442223204 its reverse (402322244406361), we get a palindrome (565926686629565).

The spelling of 163604442223204 in words is "one hundred sixty-three trillion, six hundred four billion, four hundred forty-two million, two hundred twenty-three thousand, two hundred four".