12718821662206 has 8 divisors (see below), whose sum is σ = 20812617265464. Its totient is φ = 5781282573720.

The previous prime is 12718821662153. The next prime is 12718821662207. The reversal of 12718821662206 is 60226612881721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12718821662207) 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, 289064128665 + ... + 289064128708.

It is an arithmetic number, because the mean of its divisors is an integer number (2601577158183).

Almost surely, 2^{12718821662206} is an apocalyptic number.

12718821662206 is a deficient number, since it is larger than the sum of its proper divisors (8093795603258).

12718821662206 is a wasteful number, since it uses less digits than its factorization.

12718821662206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578128257386.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 12718821662206 in words is "twelve trillion, seven hundred eighteen billion, eight hundred twenty-one million, six hundred sixty-two thousand, two hundred six".