16560617871053 has 8 divisors (see below), whose sum is σ = 17132013795000. Its totient is φ = 15989244622848.

The previous prime is 16560617871047. The next prime is 16560617871073. The reversal of 16560617871053 is 35017871606561.

It can be written as a sum of positive squares in 4 ways, for example, as 4349381157289 + 12211236713764 = 2085517^2 + 3494458^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16560617871053 - 2¹⁰ = 16560617870029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16560617871053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16560617871073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4176428 + ... + 7110821.

It is an arithmetic number, because the mean of its divisors is an integer number (2141501724375).

Almost surely, 2^{16560617871053} is an apocalyptic number.

It is an amenable number.

16560617871053 is a deficient number, since it is larger than the sum of its proper divisors (571395923947).

16560617871053 is a wasteful number, since it uses less digits than its factorization.

16560617871053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337871.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 16560617871053 in words is "sixteen trillion, five hundred sixty billion, six hundred seventeen million, eight hundred seventy-one thousand, fifty-three".