16289336640 has 112 divisors (see below), whose sum is σ = 51882763392. Its totient is φ = 4330039296.

The previous prime is 16289336639. The next prime is 16289336711. The reversal of 16289336640 is 4663398261.

16289336640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 16289336640.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 277557 + ... + 331083.

Almost surely, 2^16289336640 is an apocalyptic number.

16289336640 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 16289336640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25941381696).

16289336640 is an abundant number, since it is smaller than the sum of its proper divisors (35593426752).

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

16289336640 is a wasteful number, since it uses less digits than its factorization.

16289336640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53864 (or 53854 counting only the distinct ones).

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

The spelling of 16289336640 in words is "sixteen billion, two hundred eighty-nine million, three hundred thirty-six thousand, six hundred forty".