13159966 has 8 divisors (see below), whose sum is σ = 19755360. Its totient is φ = 6574848.

The previous prime is 13159961. The next prime is 13159969. The reversal of 13159966 is 66995131.

13159966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (13159961) 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, 3550 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (2469420).

Almost surely, 2^13159966 is an apocalyptic number.

13159966 is a deficient number, since it is larger than the sum of its proper divisors (6595394).

13159966 is a wasteful number, since it uses less digits than its factorization.

13159966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138.

The product of its digits is 43740, while the sum is 40.

The square root of 13159966 is about 3627.6667432387. Note that the first 3 decimals coincide. The cubic root of 13159966 is about 236.0939848780.

The spelling of 13159966 in words is "thirteen million, one hundred fifty-nine thousand, nine hundred sixty-six".