12162665266 has 8 divisors (see below), whose sum is σ = 19317174300. Its totient is φ = 5723607168.

The previous prime is 12162665243. The next prime is 12162665297. The reversal of 12162665266 is 66256626121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11787662041 + 375003225 = 108571^2 + 19365^2 .

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, 178862691 + ... + 178862758.

Almost surely, 2^12162665266 is an apocalyptic number.

12162665266 is a deficient number, since it is larger than the sum of its proper divisors (7154509034).

12162665266 is a wasteful number, since it uses less digits than its factorization.

12162665266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357725468.

The product of its digits is 311040, while the sum is 43.

The spelling of 12162665266 in words is "twelve billion, one hundred sixty-two million, six hundred sixty-five thousand, two hundred sixty-six".