16661364720306 has 8 divisors (see below), whose sum is σ = 33322729440624. Its totient is φ = 5553788240100.

The previous prime is 16661364720277. The next prime is 16661364720307. The reversal of 16661364720306 is 60302746316661.

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

16661364720306 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16661364720307) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1388447060020 + ... + 1388447060031.

It is an arithmetic number, because the mean of its divisors is an integer number (4165341180078).

Almost surely, 2^{16661364720306} is an apocalyptic number.

16661364720306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16661364720306 is a wasteful number, since it uses less digits than its factorization.

16661364720306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776894120056.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 16661364720306 in words is "sixteen trillion, six hundred sixty-one billion, three hundred sixty-four million, seven hundred twenty thousand, three hundred six".