132723551556 has 18 divisors (see below), whose sum is σ = 335495644302. Its totient is φ = 44241183840.

The previous prime is 132723551551. The next prime is 132723551557. The reversal of 132723551556 is 655155327231.

132723551556 is a `hidden beast` number, since 1 + 3 + 27 + 23 + 5 + 51 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69098533956 + 63625017600 = 262866^2 + 252240^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×132723551556² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (132723551551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1843382625 + ... + 1843382696.

Almost surely, 2^132723551556 is an apocalyptic number.

It is an amenable number.

132723551556 is an abundant number, since it is smaller than the sum of its proper divisors (202772092746).

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

132723551556 is a wasteful number, since it uses less digits than its factorization.

132723551556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686765331 (or 3686765326 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

Adding to 132723551556 its reverse (655155327231), we get a palindrome (787878878787).

The spelling of 132723551556 in words is "one hundred thirty-two billion, seven hundred twenty-three million, five hundred fifty-one thousand, five hundred fifty-six".