16565364750404 has 24 divisors (see below), whose sum is σ = 31197837382488. Its totient is φ = 7667671242240.

The previous prime is 16565364750371. The next prime is 16565364750463. The reversal of 16565364750404 is 40405746356561.

It can be written as a sum of positive squares in 4 ways, for example, as 4389452390404 + 12175912360000 = 2095102^2 + 3489400^2 .

It is a super-4 number, since 4×16565364750404⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16565364750404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996785239 + ... + 1996793534.

It is an arithmetic number, because the mean of its divisors is an integer number (1299909890937).

Almost surely, 2^{16565364750404} is an apocalyptic number.

It is an amenable number.

16565364750404 is a deficient number, since it is larger than the sum of its proper divisors (14632472632084).

16565364750404 is a wasteful number, since it uses less digits than its factorization.

16565364750404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993578855 (or 3993578853 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 16565364750404 in words is "sixteen trillion, five hundred sixty-five billion, three hundred sixty-four million, seven hundred fifty thousand, four hundred four".