166049339 has 2 divisors, whose sum is σ = 166049340. Its totient is φ = 166049338.

The previous prime is 166049321. The next prime is 166049369. The reversal of 166049339 is 933940661.

It is a weak prime.

It is an emirp because it is prime and its reverse (933940661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166049339 - 2⁸ = 166049083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166049296 and 166049305.

It is not a weakly prime, because it can be changed into another prime (166049369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83024669 + 83024670.

It is an arithmetic number, because the mean of its divisors is an integer number (83024670).

Almost surely, 2^166049339 is an apocalyptic number.

166049339 is a deficient number, since it is larger than the sum of its proper divisors (1).

166049339 is an equidigital number, since it uses as much as digits as its factorization.

166049339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 166049339 is about 12886.0133090107. The cubic root of 166049339 is about 549.6409105087.

The spelling of 166049339 in words is "one hundred sixty-six million, forty-nine thousand, three hundred thirty-nine".