14666561 has 16 divisors (see below), whose sum is σ = 18496128. Its totient is φ = 11318400.

The previous prime is 14666557. The next prime is 14666567. The reversal of 14666561 is 16566641.

It is a cyclic number.

It is not a de Polignac number, because 14666561 - 2² = 14666557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14666567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1766 + ... + 5696.

It is an arithmetic number, because the mean of its divisors is an integer number (1156008).

Almost surely, 2^14666561 is an apocalyptic number.

It is an amenable number.

14666561 is a deficient number, since it is larger than the sum of its proper divisors (3829567).

14666561 is a wasteful number, since it uses less digits than its factorization.

14666561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992.

The product of its digits is 25920, while the sum is 35.

The square root of 14666561 is about 3829.6946353463. The cubic root of 14666561 is about 244.7800942224.

The spelling of 14666561 in words is "fourteen million, six hundred sixty-six thousand, five hundred sixty-one".