165005327153 has 4 divisors (see below), whose sum is σ = 165031654260. Its totient is φ = 164979000048.

The previous prime is 165005327141. The next prime is 165005327171. The reversal of 165005327153 is 351723500561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351723500561 = 1907 ⋅184438123.

It can be written as a sum of positive squares in 2 ways, for example, as 20234209009 + 144771118144 = 142247^2 + 380488^2 .

It is a cyclic number.

It is not a de Polignac number, because 165005327153 - 2⁶ = 165005327089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165005327453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13154150 + ... + 13166687.

It is an arithmetic number, because the mean of its divisors is an integer number (41257913565).

Almost surely, 2^165005327153 is an apocalyptic number.

It is an amenable number.

165005327153 is a deficient number, since it is larger than the sum of its proper divisors (26327107).

165005327153 is an equidigital number, since it uses as much as digits as its factorization.

165005327153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26327106.

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 165005327153 in words is "one hundred sixty-five billion, five million, three hundred twenty-seven thousand, one hundred fifty-three".