16322320505504 has 48 divisors (see below), whose sum is σ = 34912710324072. Its totient is φ = 7466711605248.

The previous prime is 16322320505497. The next prime is 16322320505587. The reversal of 16322320505504 is 40550502322361.

It can be written as a sum of positive squares in 4 ways, for example, as 1678320250000 + 14644000255504 = 1295500^2 + 3826748^2 .

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, 173565149 + ... + 173659164.

Almost surely, 2^{16322320505504} is an apocalyptic number.

It is an amenable number.

16322320505504 is an abundant number, since it is smaller than the sum of its proper divisors (18590389818568).

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

16322320505504 is a wasteful number, since it uses less digits than its factorization.

16322320505504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347224449 (or 347224441 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 16322320505504 its reverse (40550502322361), we get a palindrome (56872822827865).

The spelling of 16322320505504 in words is "sixteen trillion, three hundred twenty-two billion, three hundred twenty million, five hundred five thousand, five hundred four".