12666037415 has 8 divisors (see below), whose sum is σ = 15199905120. Its totient is φ = 10132389792.

The previous prime is 12666037409. The next prime is 12666037421. The reversal of 12666037415 is 51473066621.

It is an interprime number because it is at equal distance from previous prime (12666037409) and next prime (12666037421).

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

It is a cyclic number.

It is not a de Polignac number, because 12666037415 - 2⁴ = 12666037399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125366 + ... + 202604.

It is an arithmetic number, because the mean of its divisors is an integer number (1899988140).

Almost surely, 2^12666037415 is an apocalyptic number.

12666037415 is a deficient number, since it is larger than the sum of its proper divisors (2533867705).

12666037415 is an equidigital number, since it uses as much as digits as its factorization.

12666037415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110041.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 12666037415 in words is "twelve billion, six hundred sixty-six million, thirty-seven thousand, four hundred fifteen".