165005327453 has 2 divisors, whose sum is σ = 165005327454. Its totient is φ = 165005327452.

The previous prime is 165005327441. The next prime is 165005327483. The reversal of 165005327453 is 354723500561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143700130084 + 21305197369 = 379078^2 + 145963^2 .

It is a cyclic number.

It is not a de Polignac number, because 165005327453 - 2⁸ = 165005327197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165005327453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165005327483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82502663726 + 82502663727.

It is an arithmetic number, because the mean of its divisors is an integer number (82502663727).

Almost surely, 2^165005327453 is an apocalyptic number.

It is an amenable number.

165005327453 is a deficient number, since it is larger than the sum of its proper divisors (1).

165005327453 is an equidigital number, since it uses as much as digits as its factorization.

165005327453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 165005327453 in words is "one hundred sixty-five billion, five million, three hundred twenty-seven thousand, four hundred fifty-three".