16851322488 has 640 divisors, whose sum is σ = 62337945600. Its totient is φ = 3679948800.

The previous prime is 16851322451. The next prime is 16851322511. The reversal of 16851322488 is 88422315861.

It is a congruent number.

It is an unprimeable number.

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 in 159 ways as a sum of consecutive naturals, for example, 543591033 + ... + 543591063.

It is an arithmetic number, because the mean of its divisors is an integer number (97403040).

Almost surely, 2^16851322488 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 16851322488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31168972800).

16851322488 is an abundant number, since it is smaller than the sum of its proper divisors (45486623112).

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

16851322488 is a wasteful number, since it uses less digits than its factorization.

16851322488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 84 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The spelling of 16851322488 in words is "sixteen billion, eight hundred fifty-one million, three hundred twenty-two thousand, four hundred eighty-eight".