12203316657 has 16 divisors (see below), whose sum is σ = 20661700480. Its totient is φ = 6973323696.

The previous prime is 12203316649. The next prime is 12203316679. The reversal of 12203316657 is 75661330221.

It is not a de Polignac number, because 12203316657 - 2³ = 12203316649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203316647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32283718 + ... + 32284095.

It is an arithmetic number, because the mean of its divisors is an integer number (1291356280).

Almost surely, 2^12203316657 is an apocalyptic number.

It is an amenable number.

12203316657 is a deficient number, since it is larger than the sum of its proper divisors (8458383823).

12203316657 is an equidigital number, since it uses as much as digits as its factorization.

12203316657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64567829 (or 64567823 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 12203316657 its reverse (75661330221), we get a palindrome (87864646878).

The spelling of 12203316657 in words is "twelve billion, two hundred three million, three hundred sixteen thousand, six hundred fifty-seven".