132640453566 has 72 divisors (see below), whose sum is σ = 301388486256. Its totient is φ = 42079150080.

The previous prime is 132640453537. The next prime is 132640453567. The reversal of 132640453566 is 665354046231.

132640453566 is a `hidden beast` number, since 1 + 3 + 2 + 6 + 40 + 45 + 3 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132640453567) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115038846 + ... + 115039998.

It is an arithmetic number, because the mean of its divisors is an integer number (4185951198).

Almost surely, 2^132640453566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132640453566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150694243128).

132640453566 is an abundant number, since it is smaller than the sum of its proper divisors (168748032690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132640453566 is a wasteful number, since it uses less digits than its factorization.

132640453566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

Adding to 132640453566 its reverse (665354046231), we get a palindrome (797994499797).

The spelling of 132640453566 in words is "one hundred thirty-two billion, six hundred forty million, four hundred fifty-three thousand, five hundred sixty-six".