13666019413 has 8 divisors (see below), whose sum is σ = 13922745408. Its totient is φ = 13410845184.

The previous prime is 13666019387. The next prime is 13666019417. The reversal of 13666019413 is 31491066631.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13666019413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666019417) 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, 370156 + ... + 405397.

It is an arithmetic number, because the mean of its divisors is an integer number (1740343176).

Almost surely, 2^13666019413 is an apocalyptic number.

It is an amenable number.

13666019413 is a deficient number, since it is larger than the sum of its proper divisors (256725995).

13666019413 is an equidigital number, since it uses as much as digits as its factorization.

13666019413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775883.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 13666019413 in words is "thirteen billion, six hundred sixty-six million, nineteen thousand, four hundred thirteen".