16539171235103 has 4 divisors (see below), whose sum is σ = 18042732256488. Its totient is φ = 15035610213720.

The previous prime is 16539171235061. The next prime is 16539171235117. The reversal of 16539171235103 is 30153217193561.

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

It is a cyclic number.

It is not a de Polignac number, because 16539171235103 - 2¹⁶ = 16539171169567 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 (16539171235163) 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, 751780510676 + ... + 751780510697.

It is an arithmetic number, because the mean of its divisors is an integer number (4510683064122).

Almost surely, 2^{16539171235103} is an apocalyptic number.

16539171235103 is a deficient number, since it is larger than the sum of its proper divisors (1503561021385).

16539171235103 is a wasteful number, since it uses less digits than its factorization.

16539171235103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503561021384.

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 16539171235103 in words is "sixteen trillion, five hundred thirty-nine billion, one hundred seventy-one million, two hundred thirty-five thousand, one hundred three".