132164013581 has 2 divisors, whose sum is σ = 132164013582. Its totient is φ = 132164013580.

The previous prime is 132164013517. The next prime is 132164013599. The reversal of 132164013581 is 185310461231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88872553225 + 43291460356 = 298115^2 + 208066^2 .

It is a cyclic number.

It is not a de Polignac number, because 132164013581 - 2⁶ = 132164013517 is a prime.

It is a super-2 number, since 2×132164013581² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132164013481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66082006790 + 66082006791.

It is an arithmetic number, because the mean of its divisors is an integer number (66082006791).

Almost surely, 2^132164013581 is an apocalyptic number.

It is an amenable number.

132164013581 is a deficient number, since it is larger than the sum of its proper divisors (1).

132164013581 is an equidigital number, since it uses as much as digits as its factorization.

132164013581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 132164013581 in words is "one hundred thirty-two billion, one hundred sixty-four million, thirteen thousand, five hundred eighty-one".