16504605504 has 42 divisors (see below), whose sum is σ = 47307473330. Its totient is φ = 5501534976.

The previous prime is 16504605463. The next prime is 16504605517. The reversal of 16504605504 is 40550640561.

16504605504 is a `hidden beast` number, since 1 + 65 + 0 + 46 + 0 + 550 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16486560000 + 18045504 = 128400^2 + 4248^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14326339 + ... + 14327490.

Almost surely, 2^16504605504 is an apocalyptic number.

It is an amenable number.

16504605504 is an abundant number, since it is smaller than the sum of its proper divisors (30802867826).

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

16504605504 is a wasteful number, since it uses less digits than its factorization.

16504605504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653847 (or 28653834 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 16504605504 in words is "sixteen billion, five hundred four million, six hundred five thousand, five hundred four".