12666754401 has 8 divisors (see below), whose sum is σ = 19301721024. Its totient is φ = 7238145360.

The previous prime is 12666754379. The next prime is 12666754423. The reversal of 12666754401 is 10445766621.

It is an interprime number because it is at equal distance from previous prime (12666754379) and next prime (12666754423).

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

It is not a de Polignac number, because 12666754401 - 2⁶ = 12666754337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12666754501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301589370 + ... + 301589411.

It is an arithmetic number, because the mean of its divisors is an integer number (2412715128).

Almost surely, 2^12666754401 is an apocalyptic number.

It is an amenable number.

12666754401 is a deficient number, since it is larger than the sum of its proper divisors (6634966623).

12666754401 is an equidigital number, since it uses as much as digits as its factorization.

12666754401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603178791.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 12666754401 in words is "twelve billion, six hundred sixty-six million, seven hundred fifty-four thousand, four hundred one".