12198663597 has 4 divisors (see below), whose sum is σ = 16264884800. Its totient is φ = 8132442396.

The previous prime is 12198663553. The next prime is 12198663619. The reversal of 12198663597 is 79536689121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12198663597 - 2⁷ = 12198663469 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 (12198663097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033110597 + ... + 2033110602.

It is an arithmetic number, because the mean of its divisors is an integer number (4066221200).

Almost surely, 2^12198663597 is an apocalyptic number.

It is an amenable number.

12198663597 is a deficient number, since it is larger than the sum of its proper divisors (4066221203).

12198663597 is an equidigital number, since it uses as much as digits as its factorization.

12198663597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066221202.

The product of its digits is 4898880, while the sum is 57.

The spelling of 12198663597 in words is "twelve billion, one hundred ninety-eight million, six hundred sixty-three thousand, five hundred ninety-seven".