16564106236018 has 32 divisors (see below), whose sum is σ = 28824631695360. Its totient is φ = 7055304303360.

The previous prime is 16564106235991. The next prime is 16564106236019. The reversal of 16564106236018 is 81063260146561.

It is not an unprimeable number, because it can be changed into a prime (16564106236019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96615346 + ... + 96786637.

It is an arithmetic number, because the mean of its divisors is an integer number (900769740480).

Almost surely, 2^{16564106236018} is an apocalyptic number.

16564106236018 is a deficient number, since it is larger than the sum of its proper divisors (12260525459342).

16564106236018 is a wasteful number, since it uses less digits than its factorization.

16564106236018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193402242.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 16564106236018 in words is "sixteen trillion, five hundred sixty-four billion, one hundred six million, two hundred thirty-six thousand, eighteen".