13881662066 has 8 divisors (see below), whose sum is σ = 20981443824. Its totient is φ = 6887847460.

The previous prime is 13881662063. The next prime is 13881662077. The reversal of 13881662066 is 66026618831.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13881662066.

It is not an unprimeable number, because it can be changed into a prime (13881662063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26491460 + ... + 26491983.

It is an arithmetic number, because the mean of its divisors is an integer number (2622680478).

Almost surely, 2^13881662066 is an apocalyptic number.

13881662066 is a deficient number, since it is larger than the sum of its proper divisors (7099781758).

13881662066 is a wasteful number, since it uses less digits than its factorization.

13881662066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52983576.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 13881662066 in words is "thirteen billion, eight hundred eighty-one million, six hundred sixty-two thousand, sixty-six".