16494073504 has 12 divisors (see below), whose sum is σ = 32472707274. Its totient is φ = 8247036736.

The previous prime is 16494073487. The next prime is 16494073507. The reversal of 16494073504 is 40537049461.

It can be written as a sum of positive squares in only one way, i.e., 8977183504 + 7516890000 = 94748^2 + 86700^2 .

It is not an unprimeable number, because it can be changed into a prime (16494073507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257719867 + ... + 257719930.

Almost surely, 2^16494073504 is an apocalyptic number.

It is an amenable number.

16494073504 is a deficient number, since it is larger than the sum of its proper divisors (15978633770).

16494073504 is an equidigital number, since it uses as much as digits as its factorization.

16494073504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515439807 (or 515439799 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 16494073504 in words is "sixteen billion, four hundred ninety-four million, seventy-three thousand, five hundred four".