12115810958 has 16 divisors (see below), whose sum is σ = 18555472656. Its totient is φ = 5931945600.

The previous prime is 12115810957. The next prime is 12115811119. The reversal of 12115810958 is 85901851121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115810957) 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, 304193 + ... + 341708.

It is an arithmetic number, because the mean of its divisors is an integer number (1159717041).

Almost surely, 2^12115810958 is an apocalyptic number.

12115810958 is a deficient number, since it is larger than the sum of its proper divisors (6439661698).

12115810958 is a wasteful number, since it uses less digits than its factorization.

12115810958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646099.

The product of its (nonzero) digits is 28800, while the sum is 41.

The spelling of 12115810958 in words is "twelve billion, one hundred fifteen million, eight hundred ten thousand, nine hundred fifty-eight".