16066686 has 16 divisors (see below), whose sum is σ = 32227200. Its totient is φ = 5339928.

The previous prime is 16066681. The next prime is 16066691. The reversal of 16066686 is 68666061.

It is an interprime number because it is at equal distance from previous prime (16066681) and next prime (16066691).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (2014200).

Almost surely, 2^16066686 is an apocalyptic number.

16066686 is an abundant number, since it is smaller than the sum of its proper divisors (16160514).

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

16066686 is a wasteful number, since it uses less digits than its factorization.

16066686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 16066686 is about 4008.3270824622. The cubic root of 16066686 is about 252.3338043025. Note that the first 3 decimals are identical.

The spelling of 16066686 in words is "sixteen million, sixty-six thousand, six hundred eighty-six".