132587721855 has 24 divisors (see below), whose sum is σ = 238330524432. Its totient is φ = 70713451008.

The previous prime is 132587721853. The next prime is 132587721859. The reversal of 132587721855 is 558127785231.

It is a happy number.

132587721855 is a `hidden beast` number, since 1 + 3 + 2 + 587 + 7 + 2 + 1 + 8 + 55 = 666.

It is not a de Polignac number, because 132587721855 - 2¹ = 132587721853 is a prime.

It is a super-4 number, since 4×132587721855⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132587721853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54561634 + ... + 54564063.

It is an arithmetic number, because the mean of its divisors is an integer number (9930438518).

Almost surely, 2^132587721855 is an apocalyptic number.

132587721855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

132587721855 is a deficient number, since it is larger than the sum of its proper divisors (105742802577).

132587721855 is an equidigital number, since it uses as much as digits as its factorization.

132587721855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109125717 (or 109125705 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 54.

The spelling of 132587721855 in words is "one hundred thirty-two billion, five hundred eighty-seven million, seven hundred twenty-one thousand, eight hundred fifty-five".