12155193875 has 16 divisors (see below), whose sum is σ = 16548745824. Its totient is φ = 8840140000.

The previous prime is 12155193857. The next prime is 12155193887. The reversal of 12155193875 is 57839155121.

It is not a de Polignac number, because 12155193875 - 2¹² = 12155189779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4418696 + ... + 4421445.

It is an arithmetic number, because the mean of its divisors is an integer number (1034296614).

Almost surely, 2^12155193875 is an apocalyptic number.

12155193875 is a deficient number, since it is larger than the sum of its proper divisors (4393551949).

12155193875 is an equidigital number, since it uses as much as digits as its factorization.

12155193875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8840167 (or 8840157 counting only the distinct ones).

The product of its digits is 378000, while the sum is 47.

The spelling of 12155193875 in words is "twelve billion, one hundred fifty-five million, one hundred ninety-three thousand, eight hundred seventy-five".