16040887040 has 144 divisors (see below), whose sum is σ = 39006878400. Its totient is φ = 6319718400.

The previous prime is 16040886997. The next prime is 16040887061. The reversal of 16040887040 is 4078804061.

It is a junction number, because it is equal to n+sod(n) for n = 16040886985 and 16040887003.

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, 28798442 + ... + 28798998.

It is an arithmetic number, because the mean of its divisors is an integer number (270881100).

Almost surely, 2^16040887040 is an apocalyptic number.

16040887040 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 16040887040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19503439200).

16040887040 is an abundant number, since it is smaller than the sum of its proper divisors (22965991360).

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

16040887040 is a wasteful number, since it uses less digits than its factorization.

16040887040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 16040887040 in words is "sixteen billion, forty million, eight hundred eighty-seven thousand, forty".