16259921920 has 192 divisors, whose sum is σ = 42948753120. Its totient is φ = 5907742720.

The previous prime is 16259921827. The next prime is 16259921933. The reversal of 16259921920 is 2912995261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13628844 + ... + 13630036.

Almost surely, 2^16259921920 is an apocalyptic number.

16259921920 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 16259921920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21474376560).

16259921920 is an abundant number, since it is smaller than the sum of its proper divisors (26688831200).

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

16259921920 is an equidigital number, since it uses as much as digits as its factorization.

16259921920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 16259921920 in words is "sixteen billion, two hundred fifty-nine million, nine hundred twenty-one thousand, nine hundred twenty".