12163811518 has 8 divisors (see below), whose sum is σ = 18465545448. Its totient is φ = 6008629704.

The previous prime is 12163811501. The next prime is 12163811521. The reversal of 12163811518 is 81511836121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36637821 + ... + 36638152.

It is an arithmetic number, because the mean of its divisors is an integer number (2308193181).

Almost surely, 2^12163811518 is an apocalyptic number.

12163811518 is a deficient number, since it is larger than the sum of its proper divisors (6301733930).

12163811518 is an equidigital number, since it uses as much as digits as its factorization.

12163811518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73276058.

The product of its digits is 11520, while the sum is 37.

The spelling of 12163811518 in words is "twelve billion, one hundred sixty-three million, eight hundred eleven thousand, five hundred eighteen".