166267313 has 4 divisors (see below), whose sum is σ = 166293540. Its totient is φ = 166241088.

The previous prime is 166267289. The next prime is 166267319. The reversal of 166267313 is 313762661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 146482609 + 19784704 = 12103^2 + 4448^2 .

It is a cyclic number.

It is not a de Polignac number, because 166267313 - 2⁶ = 166267249 is a prime.

It is a deceptive number, since it divides R_166267312.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166267319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981 + ... + 18477.

It is an arithmetic number, because the mean of its divisors is an integer number (41573385).

Almost surely, 2^166267313 is an apocalyptic number.

It is an amenable number.

166267313 is a deficient number, since it is larger than the sum of its proper divisors (26227).

166267313 is a wasteful number, since it uses less digits than its factorization.

166267313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26226.

The product of its digits is 27216, while the sum is 35.

The square root of 166267313 is about 12894.4683100933. The cubic root of 166267313 is about 549.8813110281.

The spelling of 166267313 in words is "one hundred sixty-six million, two hundred sixty-seven thousand, three hundred thirteen".