165387199339 has 2 divisors, whose sum is σ = 165387199340. Its totient is φ = 165387199338.

The previous prime is 165387199319. The next prime is 165387199349. The reversal of 165387199339 is 933991783561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165387199339 - 2¹³ = 165387191147 is a prime.

It is not a weakly prime, because it can be changed into another prime (165387199309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82693599669 + 82693599670.

It is an arithmetic number, because the mean of its divisors is an integer number (82693599670).

Almost surely, 2^165387199339 is an apocalyptic number.

165387199339 is a deficient number, since it is larger than the sum of its proper divisors (1).

165387199339 is an equidigital number, since it uses as much as digits as its factorization.

165387199339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33067440, while the sum is 64.

The spelling of 165387199339 in words is "one hundred sixty-five billion, three hundred eighty-seven million, one hundred ninety-nine thousand, three hundred thirty-nine".