16851801472 has 64 divisors (see below), whose sum is σ = 36712227600. Its totient is φ = 7641446400.

The previous prime is 16851801433. The next prime is 16851801479. The reversal of 16851801472 is 27410815861.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16851801479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578554 + ... + 606982.

Almost surely, 2^16851801472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16851801472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18356113800).

16851801472 is an abundant number, since it is smaller than the sum of its proper divisors (19860426128).

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

16851801472 is a wasteful number, since it uses less digits than its factorization.

16851801472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28875 (or 28863 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 16851801472 in words is "sixteen billion, eight hundred fifty-one million, eight hundred one thousand, four hundred seventy-two".