528736216634561 has 16 divisors (see below), whose sum is σ = 576284200618560. Its totient is φ = 482170832619840.

The previous prime is 528736216634491. The next prime is 528736216634569. The reversal of 528736216634561 is 165436612637825.

It is not a de Polignac number, because 528736216634561 - 2²⁶ = 528736149525697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528736216634569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33274631 + ... + 46526051.

It is an arithmetic number, because the mean of its divisors is an integer number (36017762538660).

Almost surely, 2^{528736216634561} is an apocalyptic number.

It is an amenable number.

528736216634561 is a deficient number, since it is larger than the sum of its proper divisors (47547983983999).

528736216634561 is a wasteful number, since it uses less digits than its factorization.

528736216634561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13288496.

The product of its digits is 261273600, while the sum is 65.

The spelling of 528736216634561 in words is "five hundred twenty-eight trillion, seven hundred thirty-six billion, two hundred sixteen million, six hundred thirty-four thousand, five hundred sixty-one".