16101166605566 has 16 divisors (see below), whose sum is σ = 27602739425760. Its totient is φ = 6900315091200.

The previous prime is 16101166605551. The next prime is 16101166605577. The reversal of 16101166605566 is 66550666110161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14865035 + ... + 15911366.

It is an arithmetic number, because the mean of its divisors is an integer number (1725171214110).

Almost surely, 2^{16101166605566} is an apocalyptic number.

16101166605566 is a deficient number, since it is larger than the sum of its proper divisors (11501572820194).

16101166605566 is a wasteful number, since it uses less digits than its factorization.

16101166605566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30813779.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 16101166605566 in words is "sixteen trillion, one hundred one billion, one hundred sixty-six million, six hundred five thousand, five hundred sixty-six".