16394633244 has 72 divisors (see below), whose sum is σ = 45234304752. Its totient is φ = 4965338880.

The previous prime is 16394633239. The next prime is 16394633251. The reversal of 16394633244 is 44233649361.

16394633244 is a `hidden beast` number, since 1 + 6 + 3 + 9 + 4 + 633 + 2 + 4 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 16394633244.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 778842 + ... + 799614.

Almost surely, 2^16394633244 is an apocalyptic number.

It is an amenable number.

16394633244 is an abundant number, since it is smaller than the sum of its proper divisors (28839671508).

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

16394633244 is a wasteful number, since it uses less digits than its factorization.

16394633244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22787 (or 22782 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The spelling of 16394633244 in words is "sixteen billion, three hundred ninety-four million, six hundred thirty-three thousand, two hundred forty-four".