13195566 has 24 divisors (see below), whose sum is σ = 28804464. Its totient is φ = 4365600.

The previous prime is 13195547. The next prime is 13195571. The reversal of 13195566 is 66559131.

13195566 is a `hidden beast` number, since 1 + 3 + 1 + 95 + 566 = 666.

13195566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13195566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210 + ... + 5141.

It is an arithmetic number, because the mean of its divisors is an integer number (1200186).

Almost surely, 2^13195566 is an apocalyptic number.

13195566 is an abundant number, since it is smaller than the sum of its proper divisors (15608898).

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

13195566 is a wasteful number, since it uses less digits than its factorization.

13195566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496 (or 5493 counting only the distinct ones).

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

The square root of 13195566 is about 3632.5701644979. The cubic root of 13195566 is about 236.3066849788.

The spelling of 13195566 in words is "thirteen million, one hundred ninety-five thousand, five hundred sixty-six".