16381259744 has 12 divisors (see below), whose sum is σ = 32250605184. Its totient is φ = 8190629856.

The previous prime is 16381259737. The next prime is 16381259749. The reversal of 16381259744 is 44795218361.

It is a happy number.

16381259744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16381259692 and 16381259701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16381259749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255957152 + ... + 255957215.

It is an arithmetic number, because the mean of its divisors is an integer number (2687550432).

Almost surely, 2^16381259744 is an apocalyptic number.

It is an amenable number.

16381259744 is a deficient number, since it is larger than the sum of its proper divisors (15869345440).

16381259744 is an equidigital number, since it uses as much as digits as its factorization.

16381259744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511914377 (or 511914369 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The spelling of 16381259744 in words is "sixteen billion, three hundred eighty-one million, two hundred fifty-nine thousand, seven hundred forty-four".