165132345331 has 2 divisors, whose sum is σ = 165132345332. Its totient is φ = 165132345330.

The previous prime is 165132345317. The next prime is 165132345359. The reversal of 165132345331 is 133543231561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165132345331 - 2²⁹ = 164595474419 is a prime.

It is a super-2 number, since 2×165132345331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165132349331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82566172665 + 82566172666.

It is an arithmetic number, because the mean of its divisors is an integer number (82566172666).

Almost surely, 2^165132345331 is an apocalyptic number.

165132345331 is a deficient number, since it is larger than the sum of its proper divisors (1).

165132345331 is an equidigital number, since it uses as much as digits as its factorization.

165132345331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

Adding to 165132345331 its reverse (133543231561), we get a palindrome (298675576892).

The spelling of 165132345331 in words is "one hundred sixty-five billion, one hundred thirty-two million, three hundred forty-five thousand, three hundred thirty-one".