16564644142652 has 12 divisors (see below), whose sum is σ = 28988169199080. Its totient is φ = 8282310085776.

The previous prime is 16564644142621. The next prime is 16564644142687. The reversal of 16564644142652 is 25624144646561.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 590243 + ... + 5785989.

It is an arithmetic number, because the mean of its divisors is an integer number (2415680766590).

Almost surely, 2^{16564644142652} is an apocalyptic number.

It is an amenable number.

16564644142652 is a deficient number, since it is larger than the sum of its proper divisors (12423525056428).

16564644142652 is a wasteful number, since it uses less digits than its factorization.

16564644142652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992780 (or 5992778 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 56.

The spelling of 16564644142652 in words is "sixteen trillion, five hundred sixty-four billion, six hundred forty-four million, one hundred forty-two thousand, six hundred fifty-two".