16890371872 has 24 divisors (see below), whose sum is σ = 36275913072. Its totient is φ = 7677441600.

The previous prime is 16890371867. The next prime is 16890371873. The reversal of 16890371872 is 27817309861.

It is not an unprimeable number, because it can be changed into a prime (16890371873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23991654 + ... + 23992357.

It is an arithmetic number, because the mean of its divisors is an integer number (1511496378).

Almost surely, 2^16890371872 is an apocalyptic number.

It is an amenable number.

16890371872 is an abundant number, since it is smaller than the sum of its proper divisors (19385541200).

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

16890371872 is a wasteful number, since it uses less digits than its factorization.

16890371872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47984032 (or 47984024 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 16890371872 in words is "sixteen billion, eight hundred ninety million, three hundred seventy-one thousand, eight hundred seventy-two".