12015166842858 has 32 divisors (see below), whose sum is σ = 24498424593216. Its totient is φ = 3927131132288.

The previous prime is 12015166842857. The next prime is 12015166842863. The reversal of 12015166842858 is 85824866151021.

It is a junction number, because it is equal to n+sod(n) for n = 12015166842798 and 12015166842807.

It is not an unprimeable number, because it can be changed into a prime (12015166842857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10802691 + ... + 11862902.

It is an arithmetic number, because the mean of its divisors is an integer number (765575768538).

Almost surely, 2^{12015166842858} is an apocalyptic number.

12015166842858 is an abundant number, since it is smaller than the sum of its proper divisors (12483257750358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12015166842858 is a wasteful number, since it uses less digits than its factorization.

12015166842858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22667318.

The product of its (nonzero) digits is 7372800, while the sum is 57.

The spelling of 12015166842858 in words is "twelve trillion, fifteen billion, one hundred sixty-six million, eight hundred forty-two thousand, eight hundred fifty-eight".