16087939920 has 480 divisors, whose sum is σ = 62293096320. Its totient is φ = 3687690240.

The previous prime is 16087939867. The next prime is 16087939949. The reversal of 16087939920 is 2993978061.

16087939920 is a `hidden beast` number, since 1 + 608 + 7 + 9 + 3 + 9 + 9 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10847499 + ... + 10848981.

It is an arithmetic number, because the mean of its divisors is an integer number (129777284).

Almost surely, 2^16087939920 is an apocalyptic number.

16087939920 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 16087939920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31146548160).

16087939920 is an abundant number, since it is smaller than the sum of its proper divisors (46205156400).

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

16087939920 is a wasteful number, since it uses less digits than its factorization.

16087939920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 16087939920 in words is "sixteen billion, eighty-seven million, nine hundred thirty-nine thousand, nine hundred twenty".