15543641053141 has 4 divisors (see below), whose sum is σ = 15548168770252. Its totient is φ = 15539113336032.

The previous prime is 15543641053103. The next prime is 15543641053181. The reversal of 15543641053141 is 14135014634551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3751600979025 + 11792040074116 = 1936905^2 + 3433954^2 .

It is a cyclic number.

It is not a de Polignac number, because 15543641053141 - 2⁷ = 15543641053013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15543641053181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263853406 + ... + 2263860271.

It is an arithmetic number, because the mean of its divisors is an integer number (3887042192563).

Almost surely, 2^{15543641053141} is an apocalyptic number.

It is an amenable number.

15543641053141 is a deficient number, since it is larger than the sum of its proper divisors (4527717111).

15543641053141 is an equidigital number, since it uses as much as digits as its factorization.

15543641053141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527717110.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 15543641053141 its reverse (14135014634551), we get a palindrome (29678655687692).

The spelling of 15543641053141 in words is "fifteen trillion, five hundred forty-three billion, six hundred forty-one million, fifty-three thousand, one hundred forty-one".