16066501606655 has 8 divisors (see below), whose sum is σ = 19284920029152. Its totient is φ = 12849789217888.

The previous prime is 16066501606613. The next prime is 16066501606657. The reversal of 16066501606655 is 55660610566061.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16066501606655 - 2³⁸ = 15791623699711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16066501606597 and 16066501606606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066501606657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426487712 + ... + 426525381.

It is an arithmetic number, because the mean of its divisors is an integer number (2410615003644).

Almost surely, 2^{16066501606655} is an apocalyptic number.

16066501606655 is a deficient number, since it is larger than the sum of its proper divisors (3218418422497).

16066501606655 is an equidigital number, since it uses as much as digits as its factorization.

16066501606655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853016865.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 16066501606655 in words is "sixteen trillion, sixty-six billion, five hundred one million, six hundred six thousand, six hundred fifty-five".