16610166566 has 16 divisors (see below), whose sum is σ = 28516647456. Its totient is φ = 7108123776.

The previous prime is 16610166499. The next prime is 16610166571. The reversal of 16610166566 is 66566101661.

16610166566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866771 + ... + 885726.

It is an arithmetic number, because the mean of its divisors is an integer number (1782290466).

Almost surely, 2^16610166566 is an apocalyptic number.

16610166566 is a deficient number, since it is larger than the sum of its proper divisors (11906480890).

16610166566 is a wasteful number, since it uses less digits than its factorization.

16610166566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753183.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 16610166566 in words is "sixteen billion, six hundred ten million, one hundred sixty-six thousand, five hundred sixty-six".