132765567521 has 4 divisors (see below), whose sum is σ = 132771884100. Its totient is φ = 132759250944.

The previous prime is 132765567509. The next prime is 132765567547. The reversal of 132765567521 is 125765567231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118005990400 + 14759577121 = 343520^2 + 121489^2 .

It is a cyclic number.

It is not a de Polignac number, because 132765567521 - 2¹⁰ = 132765566497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132765567521.

It is not an unprimeable number, because it can be changed into a prime (132765567581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3126656 + ... + 3168833.

It is an arithmetic number, because the mean of its divisors is an integer number (33192971025).

Almost surely, 2^132765567521 is an apocalyptic number.

It is an amenable number.

132765567521 is a deficient number, since it is larger than the sum of its proper divisors (6316579).

132765567521 is an equidigital number, since it uses as much as digits as its factorization.

132765567521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316578.

The product of its digits is 2646000, while the sum is 50.

The spelling of 132765567521 in words is "one hundred thirty-two billion, seven hundred sixty-five million, five hundred sixty-seven thousand, five hundred twenty-one".