12417994066 has 4 divisors (see below), whose sum is σ = 18626991102. Its totient is φ = 6208997032.

The previous prime is 12417994019. The next prime is 12417994067. The reversal of 12417994066 is 66049971421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11765957841 + 652036225 = 108471^2 + 25535^2 .

It is a super-2 number, since 2×12417994066² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 (12417994067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3104498515 + ... + 3104498518.

Almost surely, 2^12417994066 is an apocalyptic number.

12417994066 is a deficient number, since it is larger than the sum of its proper divisors (6208997036).

12417994066 is an equidigital number, since it uses as much as digits as its factorization.

12417994066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208997035.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 12417994066 in words is "twelve billion, four hundred seventeen million, nine hundred ninety-four thousand, sixty-six".