12844480155 has 32 divisors (see below), whose sum is σ = 22166452224. Its totient is φ = 6313600896.

The previous prime is 12844480147. The next prime is 12844480241. The reversal of 12844480155 is 55108444821.

It is not a de Polignac number, because 12844480155 - 2³ = 12844480147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75262 + ... + 177068.

It is an arithmetic number, because the mean of its divisors is an integer number (692701632).

Almost surely, 2^12844480155 is an apocalyptic number.

12844480155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12844480155 is a deficient number, since it is larger than the sum of its proper divisors (9321972069).

12844480155 is a wasteful number, since it uses less digits than its factorization.

12844480155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102475.

The product of its (nonzero) digits is 204800, while the sum is 42.

The spelling of 12844480155 in words is "twelve billion, eight hundred forty-four million, four hundred eighty thousand, one hundred fifty-five".