15545352105201 has 4 divisors (see below), whose sum is σ = 20727136140272. Its totient is φ = 10363568070132.

The previous prime is 15545352105181. The next prime is 15545352105259. The reversal of 15545352105201 is 10250125354551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15545352105201 - 2⁶ = 15545352105137 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 15545352105201.

It is not an unprimeable number, because it can be changed into a prime (15545352105901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2590892017531 + ... + 2590892017536.

It is an arithmetic number, because the mean of its divisors is an integer number (5181784035068).

Almost surely, 2^{15545352105201} is an apocalyptic number.

It is an amenable number.

15545352105201 is a deficient number, since it is larger than the sum of its proper divisors (5181784035071).

15545352105201 is an equidigital number, since it uses as much as digits as its factorization.

15545352105201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181784035070.

The product of its (nonzero) digits is 150000, while the sum is 39.

Adding to 15545352105201 its reverse (10250125354551), we get a palindrome (25795477459752).

The spelling of 15545352105201 in words is "fifteen trillion, five hundred forty-five billion, three hundred fifty-two million, one hundred five thousand, two hundred one".