12158083688818 has 16 divisors (see below), whose sum is σ = 18509479433280. Its totient is φ = 5988258760176.

The previous prime is 12158083688809. The next prime is 12158083688827. The reversal of 12158083688818 is 81888638085121.

It is an interprime number because it is at equal distance from previous prime (12158083688809) and next prime (12158083688827).

It is a Harshad number since it is a multiple of its sum of digits (67).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18964480 + ... + 19595092.

It is an arithmetic number, because the mean of its divisors is an integer number (1156842464580).

Almost surely, 2^{12158083688818} is an apocalyptic number.

12158083688818 is a deficient number, since it is larger than the sum of its proper divisors (6351395744462).

12158083688818 is a wasteful number, since it uses less digits than its factorization.

12158083688818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774561.

The product of its (nonzero) digits is 47185920, while the sum is 67.

The spelling of 12158083688818 in words is "twelve trillion, one hundred fifty-eight billion, eighty-three million, six hundred eighty-eight thousand, eight hundred eighteen".