16564044007336 has 32 divisors (see below), whose sum is σ = 36319830719040. Its totient is φ = 6933785862528.

The previous prime is 16564044007333. The next prime is 16564044007337. The reversal of 16564044007336 is 63370044046561.

It is a self number, because there is not a number n which added to its sum of digits gives 16564044007336.

It is not an unprimeable number, because it can be changed into a prime (16564044007333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3439375501 + ... + 3439380316.

It is an arithmetic number, because the mean of its divisors is an integer number (1134994709970).

Almost surely, 2^{16564044007336} is an apocalyptic number.

It is an amenable number.

16564044007336 is an abundant number, since it is smaller than the sum of its proper divisors (19755786711704).

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

16564044007336 is a wasteful number, since it uses less digits than its factorization.

16564044007336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878755873 (or 6878755869 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 49.

The spelling of 16564044007336 in words is "sixteen trillion, five hundred sixty-four billion, forty-four million, seven thousand, three hundred thirty-six".