132644507565 has 24 divisors (see below), whose sum is σ = 214233495840. Its totient is φ = 70082490208.

The previous prime is 132644507563. The next prime is 132644507603. The reversal of 132644507565 is 565705446231.

It is not a de Polignac number, because 132644507565 - 2¹ = 132644507563 is a prime.

It is a super-2 number, since 2×132644507565² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132644507561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214455 + ... + 557924.

It is an arithmetic number, because the mean of its divisors is an integer number (8926395660).

Almost surely, 2^132644507565 is an apocalyptic number.

132644507565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

132644507565 is a deficient number, since it is larger than the sum of its proper divisors (81588988275).

132644507565 is an equidigital number, since it uses as much as digits as its factorization.

132644507565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772601 (or 772494 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 132644507565 in words is "one hundred thirty-two billion, six hundred forty-four million, five hundred seven thousand, five hundred sixty-five".