16387077171 has 4 divisors (see below), whose sum is σ = 21849436232. Its totient is φ = 10924718112.

The previous prime is 16387077151. The next prime is 16387077221. The reversal of 16387077171 is 17177078361.

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

It is not a de Polignac number, because 16387077171 - 2⁵ = 16387077139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16387077171.

It is not an unprimeable number, because it can be changed into a prime (16387077101) 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, 2731179526 + ... + 2731179531.

It is an arithmetic number, because the mean of its divisors is an integer number (5462359058).

Almost surely, 2^16387077171 is an apocalyptic number.

16387077171 is a deficient number, since it is larger than the sum of its proper divisors (5462359061).

16387077171 is an equidigital number, since it uses as much as digits as its factorization.

16387077171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462359060.

The product of its (nonzero) digits is 345744, while the sum is 48.

The spelling of 16387077171 in words is "sixteen billion, three hundred eighty-seven million, seventy-seven thousand, one hundred seventy-one".