16564044342411 has 16 divisors (see below), whose sum is σ = 24541108494720. Its totient is φ = 11041893633960.

The previous prime is 16564044342407. The next prime is 16564044342427. The reversal of 16564044342411 is 11424344046561.

It is a happy number.

16564044342411 is a `hidden beast` number, since 1 + 6 + 564 + 0 + 4 + 4 + 3 + 42 + 41 + 1 = 666.

It is not a de Polignac number, because 16564044342411 - 2² = 16564044342407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16564044346411) 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 15 ways as a sum of consecutive naturals, for example, 21915805 + ... + 22659006.

It is an arithmetic number, because the mean of its divisors is an integer number (1533819280920).

Almost surely, 2^{16564044342411} is an apocalyptic number.

16564044342411 is a deficient number, since it is larger than the sum of its proper divisors (7977064152309).

16564044342411 is a wasteful number, since it uses less digits than its factorization.

16564044342411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44588583 (or 44588577 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

Adding to 16564044342411 its reverse (11424344046561), we get a palindrome (27988388388972).

The spelling of 16564044342411 in words is "sixteen trillion, five hundred sixty-four billion, forty-four million, three hundred forty-two thousand, four hundred eleven".