45171520320201 has 16 divisors (see below), whose sum is σ = 65704296063168. Its totient is φ = 27376567937600.

The previous prime is 45171520320181. The next prime is 45171520320203. The reversal of 45171520320201 is 10202302517154.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45171520320201 - 2⁹ = 45171520319689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (45171520320203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5886355 + ... + 11179991.

It is an arithmetic number, because the mean of its divisors is an integer number (4106518503948).

Almost surely, 2^{45171520320201} is an apocalyptic number.

It is an amenable number.

45171520320201 is a deficient number, since it is larger than the sum of its proper divisors (20532775742967).

45171520320201 is a wasteful number, since it uses less digits than its factorization.

45171520320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552232.

The product of its (nonzero) digits is 16800, while the sum is 33.

Adding to 45171520320201 its reverse (10202302517154), we get a palindrome (55373822837355).

The spelling of 45171520320201 in words is "forty-five trillion, one hundred seventy-one billion, five hundred twenty million, three hundred twenty thousand, two hundred one".