13155966 has 64 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 4082400.

The previous prime is 13155959. The next prime is 13156001. The reversal of 13155966 is 66955131.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13155966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48411 + ... + 48681.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^13155966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13155966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15667200).

13155966 is an abundant number, since it is smaller than the sum of its proper divisors (18178434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155966 is a wasteful number, since it uses less digits than its factorization.

13155966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 336 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 13155966 is about 3627.1153827801. The cubic root of 13155966 is about 236.0700620290.

The spelling of 13155966 in words is "thirteen million, one hundred fifty-five thousand, nine hundred sixty-six".