12204561266 has 8 divisors (see below), whose sum is σ = 18753350364. Its totient is φ = 5953444480.

The previous prime is 12204561247. The next prime is 12204561287. The reversal of 12204561266 is 66216540221.

It can be written as a sum of positive squares in 2 ways, for example, as 11843751241 + 360810025 = 108829^2 + 18995^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74417975 + ... + 74418138.

Almost surely, 2^12204561266 is an apocalyptic number.

12204561266 is a deficient number, since it is larger than the sum of its proper divisors (6548789098).

12204561266 is a wasteful number, since it uses less digits than its factorization.

12204561266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148836156.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 12204561266 in words is "twelve billion, two hundred four million, five hundred sixty-one thousand, two hundred sixty-six".