12855142055 has 8 divisors (see below), whose sum is σ = 17629909152. Its totient is φ = 8814954528.

The previous prime is 12855142051. The next prime is 12855142081. The reversal of 12855142055 is 55024155821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12855142055 - 2² = 12855142051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855142051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183644852 + ... + 183644921.

It is an arithmetic number, because the mean of its divisors is an integer number (2203738644).

Almost surely, 2^12855142055 is an apocalyptic number.

12855142055 is a deficient number, since it is larger than the sum of its proper divisors (4774767097).

12855142055 is an equidigital number, since it uses as much as digits as its factorization.

12855142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367289785.

The product of its (nonzero) digits is 80000, while the sum is 38.

Adding to 12855142055 its reverse (55024155821), we get a palindrome (67879297876).

The spelling of 12855142055 in words is "twelve billion, eight hundred fifty-five million, one hundred forty-two thousand, fifty-five".