12158876115 has 16 divisors (see below), whose sum is σ = 21615780000. Its totient is φ = 6484733856.

The previous prime is 12158876111. The next prime is 12158876143. The reversal of 12158876115 is 51167885121.

12158876115 is a `hidden beast` number, since 1 + 2 + 1 + 588 + 7 + 61 + 1 + 5 = 666.

It is not a de Polignac number, because 12158876115 - 2² = 12158876111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12158876111) 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, 45032740 + ... + 45033009.

It is an arithmetic number, because the mean of its divisors is an integer number (1350986250).

Almost surely, 2^12158876115 is an apocalyptic number.

12158876115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12158876115 is a deficient number, since it is larger than the sum of its proper divisors (9456903885).

12158876115 is an equidigital number, since it uses as much as digits as its factorization.

12158876115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90065763 (or 90065757 counting only the distinct ones).

The product of its digits is 134400, while the sum is 45.

The spelling of 12158876115 in words is "twelve billion, one hundred fifty-eight million, eight hundred seventy-six thousand, one hundred fifteen".