12158637297 has 8 divisors (see below), whose sum is σ = 16212823680. Its totient is φ = 8105104560.

The previous prime is 12158637209. The next prime is 12158637299. The reversal of 12158637297 is 79273685121.

12158637297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12158637297 - 2⁸ = 12158637041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12158637299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118222 + ... + 195687.

It is an arithmetic number, because the mean of its divisors is an integer number (2026602960).

Almost surely, 2^12158637297 is an apocalyptic number.

It is an amenable number.

12158637297 is a deficient number, since it is larger than the sum of its proper divisors (4054186383).

12158637297 is a wasteful number, since it uses less digits than its factorization.

12158637297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326823.

The product of its digits is 1270080, while the sum is 51.

The spelling of 12158637297 in words is "twelve billion, one hundred fifty-eight million, six hundred thirty-seven thousand, two hundred ninety-seven".