16321742140 has 96 divisors (see below), whose sum is σ = 39459974400. Its totient is φ = 5608465920.

The previous prime is 16321742131. The next prime is 16321742207. The reversal of 16321742140 is 4124712361.

16321742140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1704847 + ... + 1714393.

It is an arithmetic number, because the mean of its divisors is an integer number (411041400).

Almost surely, 2^16321742140 is an apocalyptic number.

16321742140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16321742140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19729987200).

16321742140 is an abundant number, since it is smaller than the sum of its proper divisors (23138232260).

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

16321742140 is a wasteful number, since it uses less digits than its factorization.

16321742140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995 (or 9993 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 16321742140 in words is "sixteen billion, three hundred twenty-one million, seven hundred forty-two thousand, one hundred forty".