16031992320 has 240 divisors, whose sum is σ = 55970703360. Its totient is φ = 4240760832.

The previous prime is 16031992237. The next prime is 16031992321. The reversal of 16031992320 is 2329913061.

It is a happy number.

16031992320 is a `hidden beast` number, since 1 + 603 + 1 + 9 + 9 + 23 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16031992321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2923341 + ... + 2928819.

It is an arithmetic number, because the mean of its divisors is an integer number (233211264).

Almost surely, 2^16031992320 is an apocalyptic number.

16031992320 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 16031992320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27985351680).

16031992320 is an abundant number, since it is smaller than the sum of its proper divisors (39938711040).

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

16031992320 is a wasteful number, since it uses less digits than its factorization.

16031992320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5616 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 16031992320 in words is "sixteen billion, thirty-one million, nine hundred ninety-two thousand, three hundred twenty".