16503327672 has 64 divisors (see below), whose sum is σ = 44931348000. Its totient is φ = 5020882944.

The previous prime is 16503327647. The next prime is 16503327691. The reversal of 16503327672 is 27672330561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269397 + ... + 324932.

Almost surely, 2^16503327672 is an apocalyptic number.

16503327672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16503327672 is an abundant number, since it is smaller than the sum of its proper divisors (28428020328).

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

16503327672 is a wasteful number, since it uses less digits than its factorization.

16503327672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594440 (or 594436 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 16503327672 in words is "sixteen billion, five hundred three million, three hundred twenty-seven thousand, six hundred seventy-two".