3166741322161 has 4 divisors (see below), whose sum is σ = 3240386469232. Its totient is φ = 3093096175092.

The previous prime is 3166741322131. The next prime is 3166741322189. The reversal of 3166741322161 is 1612231476613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3166741322161 - 2⁷ = 3166741322033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 73645147027 = 3166741322161 / (3 + 1 + 6 + 6 + 7 + 4 + 1 + 3 + 2 + 2 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3166741322131) 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, 36822573471 + ... + 36822573556.

It is an arithmetic number, because the mean of its divisors is an integer number (810096617308).

Almost surely, 2^{3166741322161} is an apocalyptic number.

It is an amenable number.

3166741322161 is a deficient number, since it is larger than the sum of its proper divisors (73645147071).

3166741322161 is an equidigital number, since it uses as much as digits as its factorization.

3166741322161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73645147070.

The product of its digits is 217728, while the sum is 43.

Adding to 3166741322161 its reverse (1612231476613), we get a palindrome (4778972798774).

The spelling of 3166741322161 in words is "three trillion, one hundred sixty-six billion, seven hundred forty-one million, three hundred twenty-two thousand, one hundred sixty-one".