16545205174553 has 8 divisors (see below), whose sum is σ = 19111039132320. Its totient is φ = 14156325282880.

The previous prime is 16545205174529. The next prime is 16545205174579. The reversal of 16545205174553 is 35547150254561.

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

It is not a de Polignac number, because 16545205174553 - 2¹⁴ = 16545205158169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16545205174495 and 16545205174504.

It is not an unprimeable number, because it can be changed into a prime (16545205174453) 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, 44238516323 + ... + 44238516696.

It is an arithmetic number, because the mean of its divisors is an integer number (2388879891540).

Almost surely, 2^{16545205174553} is an apocalyptic number.

It is an amenable number.

16545205174553 is a deficient number, since it is larger than the sum of its proper divisors (2565833957767).

16545205174553 is a wasteful number, since it uses less digits than its factorization.

16545205174553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88477033047.

The product of its (nonzero) digits is 12600000, while the sum is 53.

The spelling of 16545205174553 in words is "sixteen trillion, five hundred forty-five billion, two hundred five million, one hundred seventy-four thousand, five hundred fifty-three".