16565556564002 has 8 divisors (see below), whose sum is σ = 24889271149056. Its totient is φ = 8269132847652.

The previous prime is 16565556563917. The next prime is 16565556564017. The reversal of 16565556564002 is 20046565556561.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6822715658 + ... + 6822718085.

It is an arithmetic number, because the mean of its divisors is an integer number (3111158893632).

Almost surely, 2^{16565556564002} is an apocalyptic number.

16565556564002 is a deficient number, since it is larger than the sum of its proper divisors (8323714585054).

16565556564002 is a wasteful number, since it uses less digits than its factorization.

16565556564002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13645434352.

The product of its (nonzero) digits is 32400000, while the sum is 56.

The spelling of 16565556564002 in words is "sixteen trillion, five hundred sixty-five billion, five hundred fifty-six million, five hundred sixty-four thousand, two".