12441358066 has 4 divisors (see below), whose sum is σ = 18662037102. Its totient is φ = 6220679032.

The previous prime is 12441358051. The next prime is 12441358067. The reversal of 12441358066 is 66085314421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66085314421 = 7 ⋅9440759203.

It can be written as a sum of positive squares in only one way, i.e., 8225583025 + 4215775041 = 90695^2 + 64929^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12441358067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110339515 + ... + 3110339518.

Almost surely, 2^12441358066 is an apocalyptic number.

12441358066 is a deficient number, since it is larger than the sum of its proper divisors (6220679036).

12441358066 is an equidigital number, since it uses as much as digits as its factorization.

12441358066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220679035.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 12441358066 in words is "twelve billion, four hundred forty-one million, three hundred fifty-eight thousand, sixty-six".