12155318673 has 8 divisors (see below), whose sum is σ = 16219310208. Its totient is φ = 8097436464.

The previous prime is 12155318671. The next prime is 12155318683. The reversal of 12155318673 is 37681355121.

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

It is not a de Polignac number, because 12155318673 - 2¹ = 12155318671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12155318671) 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, 1522686 + ... + 1530647.

It is an arithmetic number, because the mean of its divisors is an integer number (2027413776).

Almost surely, 2^12155318673 is an apocalyptic number.

It is an amenable number.

12155318673 is a deficient number, since it is larger than the sum of its proper divisors (4063991535).

12155318673 is a wasteful number, since it uses less digits than its factorization.

12155318673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054663.

The product of its digits is 151200, while the sum is 42.

The spelling of 12155318673 in words is "twelve billion, one hundred fifty-five million, three hundred eighteen thousand, six hundred seventy-three".