13989494066 has 16 divisors (see below), whose sum is σ = 21045528000. Its totient is φ = 6974336688.

The previous prime is 13989494039. The next prime is 13989494083. The reversal of 13989494066 is 66049498931.

It is a junction number, because it is equal to n+sod(n) for n = 13989493996 and 13989494014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2253635 + ... + 2259833.

It is an arithmetic number, because the mean of its divisors is an integer number (1315345500).

Almost surely, 2^13989494066 is an apocalyptic number.

13989494066 is a deficient number, since it is larger than the sum of its proper divisors (7056033934).

13989494066 is a wasteful number, since it uses less digits than its factorization.

13989494066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9313.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 13989494066 in words is "thirteen billion, nine hundred eighty-nine million, four hundred ninety-four thousand, sixty-six".