166265159713 has 2 divisors, whose sum is σ = 166265159714. Its totient is φ = 166265159712.

The previous prime is 166265159689. The next prime is 166265159717. The reversal of 166265159713 is 317951562661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164699612224 + 1565547489 = 405832^2 + 39567^2 .

It is an emirp because it is prime and its reverse (317951562661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166265159713 - 2²⁹ = 165728288801 is a prime.

It is not a weakly prime, because it can be changed into another prime (166265159717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83132579856 + 83132579857.

It is an arithmetic number, because the mean of its divisors is an integer number (83132579857).

Almost surely, 2^166265159713 is an apocalyptic number.

It is an amenable number.

166265159713 is a deficient number, since it is larger than the sum of its proper divisors (1).

166265159713 is an equidigital number, since it uses as much as digits as its factorization.

166265159713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 52.

The spelling of 166265159713 in words is "one hundred sixty-six billion, two hundred sixty-five million, one hundred fifty-nine thousand, seven hundred thirteen".