12170675514161 has 4 divisors (see below), whose sum is σ = 12170741438052. Its totient is φ = 12170609590272.

The previous prime is 12170675514157. The next prime is 12170675514187. The reversal of 12170675514161 is 16141557607121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5608465968400 + 6562209545761 = 2368220^2 + 2561681^2 .

It is a cyclic number.

It is not a de Polignac number, because 12170675514161 - 2² = 12170675514157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12170675514061) 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, 32684240 + ... + 33054513.

It is an arithmetic number, because the mean of its divisors is an integer number (3042685359513).

Almost surely, 2^{12170675514161} is an apocalyptic number.

It is an amenable number.

12170675514161 is a deficient number, since it is larger than the sum of its proper divisors (65923891).

12170675514161 is an equidigital number, since it uses as much as digits as its factorization.

12170675514161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65923890.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 12170675514161 in words is "twelve trillion, one hundred seventy billion, six hundred seventy-five million, five hundred fourteen thousand, one hundred sixty-one".