16394775936 has 576 divisors, whose sum is σ = 58767912000. Its totient is φ = 4023613440.

The previous prime is 16394775931. The next prime is 16394775989. The reversal of 16394775936 is 63957749361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16394775936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16394775931) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43257795 + ... + 43258173.

It is an arithmetic number, because the mean of its divisors is an integer number (102027625).

Almost surely, 2^16394775936 is an apocalyptic number.

16394775936 is a gapful number since it is divisible by the number (16) 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 16394775936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29383956000).

16394775936 is an abundant number, since it is smaller than the sum of its proper divisors (42373136064).

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

16394775936 is a wasteful number, since it uses less digits than its factorization.

16394775936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 421 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 60.

The spelling of 16394775936 in words is "sixteen billion, three hundred ninety-four million, seven hundred seventy-five thousand, nine hundred thirty-six".