12366504615197 has 4 divisors (see below), whose sum is σ = 12493994353596. Its totient is φ = 12239014876800.

The previous prime is 12366504615193. The next prime is 12366504615233. The reversal of 12366504615197 is 79151640566321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1926749429476 + 10439755185721 = 1388074^2 + 3231061^2 .

It is a cyclic number.

It is not a de Polignac number, because 12366504615197 - 2² = 12366504615193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12366504615191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63744869054 + ... + 63744869247.

It is an arithmetic number, because the mean of its divisors is an integer number (3123498588399).

Almost surely, 2^{12366504615197} is an apocalyptic number.

It is an amenable number.

12366504615197 is a deficient number, since it is larger than the sum of its proper divisors (127489738399).

12366504615197 is an equidigital number, since it uses as much as digits as its factorization.

12366504615197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127489738398.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 12366504615197 in words is "twelve trillion, three hundred sixty-six billion, five hundred four million, six hundred fifteen thousand, one hundred ninety-seven".