12158876085 has 16 divisors (see below), whose sum is σ = 20598566976. Its totient is φ = 6103278848.

The previous prime is 12158876063. The next prime is 12158876099. The reversal of 12158876085 is 58067885121.

It is a cyclic number.

It is not a de Polignac number, because 12158876085 - 2⁵ = 12158876053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23840679 + ... + 23841188.

It is an arithmetic number, because the mean of its divisors is an integer number (1287410436).

Almost surely, 2^12158876085 is an apocalyptic number.

12158876085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12158876085 is a deficient number, since it is larger than the sum of its proper divisors (8439690891).

12158876085 is a wasteful number, since it uses less digits than its factorization.

12158876085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47681892.

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 12158876085 in words is "twelve billion, one hundred fifty-eight million, eight hundred seventy-six thousand, eighty-five".