166319339 has 2 divisors, whose sum is σ = 166319340. Its totient is φ = 166319338.

The previous prime is 166319299. The next prime is 166319429. The reversal of 166319339 is 933913661.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (933913661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166319339 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166319296 and 166319305.

It is not a weakly prime, because it can be changed into another prime (166319539) 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, 83159669 + 83159670.

It is an arithmetic number, because the mean of its divisors is an integer number (83159670).

Almost surely, 2^166319339 is an apocalyptic number.

166319339 is a deficient number, since it is larger than the sum of its proper divisors (1).

166319339 is an equidigital number, since it uses as much as digits as its factorization.

166319339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 41.

The square root of 166319339 is about 12896.4855290114. The cubic root of 166319339 is about 549.9386587236.

The spelling of 166319339 in words is "one hundred sixty-six million, three hundred nineteen thousand, three hundred thirty-nine".