16565033745055 has 8 divisors (see below), whose sum is σ = 19960521991344. Its totient is φ = 13197039331200.

The previous prime is 16565033745049. The next prime is 16565033745119. The reversal of 16565033745055 is 55054733056561.

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

It is not a de Polignac number, because 16565033745055 - 2¹⁹ = 16565033220767 is a prime.

It is a super-3 number, since 3×16565033745055³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16565033744987 and 16565033745005.

It is a congruent number.

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, 6873456781 + ... + 6873459190.

It is an arithmetic number, because the mean of its divisors is an integer number (2495065248918).

Almost surely, 2^{16565033745055} is an apocalyptic number.

16565033745055 is a deficient number, since it is larger than the sum of its proper divisors (3395488246289).

16565033745055 is a wasteful number, since it uses less digits than its factorization.

16565033745055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746916217.

The product of its (nonzero) digits is 28350000, while the sum is 55.

The spelling of 16565033745055 in words is "sixteen trillion, five hundred sixty-five billion, thirty-three million, seven hundred forty-five thousand, fifty-five".