16504520324 has 12 divisors (see below), whose sum is σ = 28907129244. Its totient is φ = 8245340544.

The previous prime is 16504520323. The next prime is 16504520359. The reversal of 16504520324 is 42302540561.

It can be written as a sum of positive squares in 2 ways, for example, as 9522246724 + 6982273600 = 97582^2 + 83560^2 .

It is a super-2 number, since 2×16504520324² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16504520323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724537 + ... + 1734080.

It is an arithmetic number, because the mean of its divisors is an integer number (2408927437).

Almost surely, 2^16504520324 is an apocalyptic number.

It is an amenable number.

16504520324 is a deficient number, since it is larger than the sum of its proper divisors (12402608920).

16504520324 is a wasteful number, since it uses less digits than its factorization.

16504520324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459814 (or 3459812 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 16504520324 in words is "sixteen billion, five hundred four million, five hundred twenty thousand, three hundred twenty-four".