166346353 has 2 divisors, whose sum is σ = 166346354. Its totient is φ = 166346352.

The previous prime is 166346351. The next prime is 166346357. The reversal of 166346353 is 353643661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145250704 + 21095649 = 12052^2 + 4593^2 .

It is a cyclic number.

It is not a de Polignac number, because 166346353 - 2¹ = 166346351 is a prime.

It is a super-2 number, since 2×166346353² = 55342218312801218, which contains 22 as substring.

Together with 166346351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (166346351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83173176 + 83173177.

It is an arithmetic number, because the mean of its divisors is an integer number (83173177).

Almost surely, 2^166346353 is an apocalyptic number.

It is an amenable number.

166346353 is a deficient number, since it is larger than the sum of its proper divisors (1).

166346353 is an equidigital number, since it uses as much as digits as its factorization.

166346353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 166346353 is about 12897.5328260873. The cubic root of 166346353 is about 549.9684312459.

The spelling of 166346353 in words is "one hundred sixty-six million, three hundred forty-six thousand, three hundred fifty-three".