16543540140027 has 16 divisors (see below), whose sum is σ = 22204875800832. Its totient is φ = 10955620504800.

The previous prime is 16543540140013. The next prime is 16543540140059. The reversal of 16543540140027 is 72004104534561.

It is not a de Polignac number, because 16543540140027 - 2¹⁰ = 16543540139003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16543540140067) 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, 13301448 + ... + 14491914.

It is an arithmetic number, because the mean of its divisors is an integer number (1387804737552).

Almost surely, 2^{16543540140027} is an apocalyptic number.

16543540140027 is a deficient number, since it is larger than the sum of its proper divisors (5661335660805).

16543540140027 is a wasteful number, since it uses less digits than its factorization.

16543540140027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221298.

The product of its (nonzero) digits is 403200, while the sum is 42.

Adding to 16543540140027 its reverse (72004104534561), we get a palindrome (88547644674588).

The spelling of 16543540140027 in words is "sixteen trillion, five hundred forty-three billion, five hundred forty million, one hundred forty thousand, twenty-seven".