16564002070023 has 32 divisors (see below), whose sum is σ = 24957465120000. Its totient is φ = 10854511037856.

The previous prime is 16564002069961. The next prime is 16564002070061. The reversal of 16564002070023 is 32007020046561.

16564002070023 is a `hidden beast` number, since 1 + 6 + 5 + 640 + 0 + 2 + 0 + 7 + 0 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 16564002070023 - 2³² = 16559707102727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16564002070023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16564002070523) 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 31 ways as a sum of consecutive naturals, for example, 17146873 + ... + 18087101.

It is an arithmetic number, because the mean of its divisors is an integer number (779920785000).

Almost surely, 2^{16564002070023} is an apocalyptic number.

16564002070023 is a deficient number, since it is larger than the sum of its proper divisors (8393463049977).

16564002070023 is a wasteful number, since it uses less digits than its factorization.

16564002070023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951356 (or 951350 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 16564002070023 in words is "sixteen trillion, five hundred sixty-four billion, two million, seventy thousand, twenty-three".