16687284173871 has 16 divisors (see below), whose sum is σ = 22602539013120. Its totient is φ = 10949794552800.

The previous prime is 16687284173869. The next prime is 16687284173893. The reversal of 16687284173871 is 17837148278661.

It is not a de Polignac number, because 16687284173871 - 2¹ = 16687284173869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16687284173796 and 16687284173805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16687284173971) 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, 168928935 + ... + 169027688.

It is an arithmetic number, because the mean of its divisors is an integer number (1412658688320).

Almost surely, 2^{16687284173871} is an apocalyptic number.

16687284173871 is a deficient number, since it is larger than the sum of its proper divisors (5915254839249).

16687284173871 is a wasteful number, since it uses less digits than its factorization.

16687284173871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337956886.

The product of its digits is 151732224, while the sum is 69.

The spelling of 16687284173871 in words is "sixteen trillion, six hundred eighty-seven billion, two hundred eighty-four million, one hundred seventy-three thousand, eight hundred seventy-one".