15541045542143 has 16 divisors (see below), whose sum is σ = 17085208089600. Its totient is φ = 14018884582080.

The previous prime is 15541045542131. The next prime is 15541045542161. The reversal of 15541045542143 is 34124554014551.

It is a cyclic number.

It is not a de Polignac number, because 15541045542143 - 2³⁰ = 15539971800319 is a prime.

It is a super-3 number, since 3×15541045542143³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15541045542094 and 15541045542103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15541045542943) 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, 398 + ... + 5575131.

It is an arithmetic number, because the mean of its divisors is an integer number (1067825505600).

Almost surely, 2^{15541045542143} is an apocalyptic number.

15541045542143 is a deficient number, since it is larger than the sum of its proper divisors (1544162547457).

15541045542143 is a wasteful number, since it uses less digits than its factorization.

15541045542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577502.

The product of its (nonzero) digits is 960000, while the sum is 44.

Adding to 15541045542143 its reverse (34124554014551), we get a palindrome (49665599556694).

The spelling of 15541045542143 in words is "fifteen trillion, five hundred forty-one billion, forty-five million, five hundred forty-two thousand, one hundred forty-three".