4161667456169 has 2 divisors, whose sum is σ = 4161667456170. Its totient is φ = 4161667456168.

The previous prime is 4161667456123. The next prime is 4161667456189. The reversal of 4161667456169 is 9616547661614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2720563244569 + 1441104211600 = 1649413^2 + 1200460^2 .

It is a cyclic number.

It is not a de Polignac number, because 4161667456169 - 2¹⁶ = 4161667390633 is a prime.

It is a super-2 number, since 2×4161667456169² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4161667456189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080833728084 + 2080833728085.

It is an arithmetic number, because the mean of its divisors is an integer number (2080833728085).

Almost surely, 2^{4161667456169} is an apocalyptic number.

It is an amenable number.

4161667456169 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161667456169 is an equidigital number, since it uses as much as digits as its factorization.

4161667456169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 62.

The spelling of 4161667456169 in words is "four trillion, one hundred sixty-one billion, six hundred sixty-seven million, four hundred fifty-six thousand, one hundred sixty-nine".