12158912899 has 8 divisors (see below), whose sum is σ = 14001977088. Its totient is φ = 10342367880.

The previous prime is 12158912897. The next prime is 12158912933. The reversal of 12158912899 is 99821985121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12158912899 - 2¹ = 12158912897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12158912897) 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, 6628807 + ... + 6630640.

It is an arithmetic number, because the mean of its divisors is an integer number (1750247136).

Almost surely, 2^12158912899 is an apocalyptic number.

12158912899 is a deficient number, since it is larger than the sum of its proper divisors (1843064189).

12158912899 is a wasteful number, since it uses less digits than its factorization.

12158912899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259585.

The product of its digits is 933120, while the sum is 55.

The spelling of 12158912899 in words is "twelve billion, one hundred fifty-eight million, nine hundred twelve thousand, eight hundred ninety-nine".