16202161666 has 8 divisors (see below), whose sum is σ = 24610878720. Its totient is φ = 7998535428.

The previous prime is 16202161649. The next prime is 16202161673. The reversal of 16202161666 is 66616120261.

16202161666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 51272506 + ... + 51272821.

It is an arithmetic number, because the mean of its divisors is an integer number (3076359840).

Almost surely, 2^16202161666 is an apocalyptic number.

16202161666 is a deficient number, since it is larger than the sum of its proper divisors (8408717054).

16202161666 is a wasteful number, since it uses less digits than its factorization.

16202161666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102545408.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 16202161666 in words is "sixteen billion, two hundred two million, one hundred sixty-one thousand, six hundred sixty-six".