16043939104440 has 64 divisors (see below), whose sum is σ = 51834264804000. Its totient is φ = 3949277317632.

The previous prime is 16043939104409. The next prime is 16043939104451. The reversal of 16043939104440 is 4440193934061.

It is a self number, because there is not a number n which added to its sum of digits gives 16043939104440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5142286615 + ... + 5142289734.

Almost surely, 2^{16043939104440} is an apocalyptic number.

16043939104440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16043939104440 is an abundant number, since it is smaller than the sum of its proper divisors (35790325699560).

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

16043939104440 is a wasteful number, since it uses less digits than its factorization.

16043939104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10284576376 (or 10284576372 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 16043939104440 in words is "sixteen trillion, forty-three billion, nine hundred thirty-nine million, one hundred four thousand, four hundred forty".