16087240840 has 256 divisors, whose sum is σ = 41969664000. Its totient is φ = 5497390080.

The previous prime is 16087240823. The next prime is 16087240859. The reversal of 16087240840 is 4804278061.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 16087240793 and 16087240802.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70249846 + ... + 70250074.

It is an arithmetic number, because the mean of its divisors is an integer number (163944000).

Almost surely, 2^16087240840 is an apocalyptic number.

16087240840 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 16087240840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20984832000).

16087240840 is an abundant number, since it is smaller than the sum of its proper divisors (25882423160).

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

16087240840 is a wasteful number, since it uses less digits than its factorization.

16087240840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 16087240840 in words is "sixteen billion, eighty-seven million, two hundred forty thousand, eight hundred forty".