16564106612422 has 8 divisors (see below), whose sum is σ = 24855749335872. Its totient is φ = 8278856833800.

The previous prime is 16564106612393. The next prime is 16564106612429. The reversal of 16564106612422 is 22421660146561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16564106612429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598229729 + ... + 1598240092.

It is an arithmetic number, because the mean of its divisors is an integer number (3106968666984).

Almost surely, 2^{16564106612422} is an apocalyptic number.

16564106612422 is a deficient number, since it is larger than the sum of its proper divisors (8291642723450).

16564106612422 is a wasteful number, since it uses less digits than its factorization.

16564106612422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196472414.

The product of its (nonzero) digits is 829440, while the sum is 46.

Adding to 16564106612422 its reverse (22421660146561), we get a palindrome (38985766758983).

The spelling of 16564106612422 in words is "sixteen trillion, five hundred sixty-four billion, one hundred six million, six hundred twelve thousand, four hundred twenty-two".