16161616171 has 4 divisors (see below), whose sum is σ = 16162946352. Its totient is φ = 16160285992.

The previous prime is 16161616153. The next prime is 16161616181. The reversal of 16161616171 is 17161616161.

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 16161616171 - 2⁵ = 16161616139 is a prime.

It is a super-2 number, since 2×16161616171² (a number of 21 digits) contains 22 as substring.

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 16161616171.

It is not an unprimeable number, because it can be changed into a prime (16161616181) 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, 646696 + ... + 671221.

It is an arithmetic number, because the mean of its divisors is an integer number (4040736588).

Almost surely, 2^16161616171 is an apocalyptic number.

16161616171 is a deficient number, since it is larger than the sum of its proper divisors (1330181).

16161616171 is a wasteful number, since it uses less digits than its factorization.

16161616171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330180.

The product of its digits is 9072, while the sum is 37.

The spelling of 16161616171 in words is "sixteen billion, one hundred sixty-one million, six hundred sixteen thousand, one hundred seventy-one".