82544418855 has 24 divisors (see below), whose sum is σ = 143426846160. Its totient is φ = 43916042880.

The previous prime is 82544418851. The next prime is 82544418863. The reversal of 82544418855 is 55881444528.

It is a happy number.

82544418855 is a `hidden beast` number, since 8 + 2 + 544 + 4 + 18 + 85 + 5 = 666.

It is not a de Polignac number, because 82544418855 - 2² = 82544418851 is a prime.

It is a super-2 number, since 2×82544418855² (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 (82544418851) 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, 2224041 + ... + 2260850.

It is an arithmetic number, because the mean of its divisors is an integer number (5976118590).

Almost surely, 2^82544418855 is an apocalyptic number.

82544418855 is a deficient number, since it is larger than the sum of its proper divisors (60882427305).

82544418855 is a wasteful number, since it uses less digits than its factorization.

82544418855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485311 (or 4485308 counting only the distinct ones).

The product of its digits is 8192000, while the sum is 54.

The spelling of 82544418855 in words is "eighty-two billion, five hundred forty-four million, four hundred eighteen thousand, eight hundred fifty-five".