13566966 has 32 divisors (see below), whose sum is σ = 31138560. Its totient is φ = 3860256.

The previous prime is 13566953. The next prime is 13566997. The reversal of 13566966 is 66966531.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12805 + ... + 13823.

It is an arithmetic number, because the mean of its divisors is an integer number (973080).

Almost surely, 2^13566966 is an apocalyptic number.

13566966 is an abundant number, since it is smaller than the sum of its proper divisors (17571594).

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

13566966 is a wasteful number, since it uses less digits than its factorization.

13566966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348.

The product of its digits is 174960, while the sum is 42.

The square root of 13566966 is about 3683.3362594257. The cubic root of 13566966 is about 238.5032193264.

The spelling of 13566966 in words is "thirteen million, five hundred sixty-six thousand, nine hundred sixty-six".