12666417151 has 4 divisors (see below), whose sum is σ = 12668180904. Its totient is φ = 12664653400.

The previous prime is 12666417133. The next prime is 12666417167. The reversal of 12666417151 is 15171466621.

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

It is a cyclic number.

It is not a de Polignac number, because 12666417151 - 2⁹ = 12666416639 is a prime.

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 a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666417251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871060 + ... + 885481.

It is an arithmetic number, because the mean of its divisors is an integer number (3167045226).

Almost surely, 2^12666417151 is an apocalyptic number.

12666417151 is a deficient number, since it is larger than the sum of its proper divisors (1763753).

12666417151 is an equidigital number, since it uses as much as digits as its factorization.

12666417151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763752.

The product of its digits is 60480, while the sum is 40.

The spelling of 12666417151 in words is "twelve billion, six hundred sixty-six million, four hundred seventeen thousand, one hundred fifty-one".