165309324203 has 2 divisors, whose sum is σ = 165309324204. Its totient is φ = 165309324202.

The previous prime is 165309324197. The next prime is 165309324329. The reversal of 165309324203 is 302423903561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165309324203 - 2³⁶ = 96589847467 is a prime.

It is not a weakly prime, because it can be changed into another prime (165309324403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82654662101 + 82654662102.

It is an arithmetic number, because the mean of its divisors is an integer number (82654662102).

Almost surely, 2^165309324203 is an apocalyptic number.

165309324203 is a deficient number, since it is larger than the sum of its proper divisors (1).

165309324203 is an equidigital number, since it uses as much as digits as its factorization.

165309324203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 165309324203 in words is "one hundred sixty-five billion, three hundred nine million, three hundred twenty-four thousand, two hundred three".