12666754402 has 8 divisors (see below), whose sum is σ = 19083102300. Its totient is φ = 6305720304.

The previous prime is 12666754379. The next prime is 12666754423. The reversal of 12666754402 is 20445766621.

It can be written as a sum of positive squares in 2 ways, for example, as 11479193881 + 1187560521 = 107141^2 + 34461^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13827877 + ... + 13828792.

Almost surely, 2^12666754402 is an apocalyptic number.

12666754402 is a deficient number, since it is larger than the sum of its proper divisors (6416347898).

12666754402 is a wasteful number, since it uses less digits than its factorization.

12666754402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27656900.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 12666754402 in words is "twelve billion, six hundred sixty-six million, seven hundred fifty-four thousand, four hundred two".