16000550556666 has 32 divisors (see below), whose sum is σ = 34470541465920. Its totient is φ = 4922129583744.

The previous prime is 16000550556643. The next prime is 16000550556667. The reversal of 16000550556666 is 66665505500061.

It is not an unprimeable number, because it can be changed into a prime (16000550556667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22919340 + ... + 23607143.

It is an arithmetic number, because the mean of its divisors is an integer number (1077204420810).

Almost surely, 2^{16000550556666} is an apocalyptic number.

16000550556666 is an abundant number, since it is smaller than the sum of its proper divisors (18469990909254).

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

16000550556666 is a wasteful number, since it uses less digits than its factorization.

16000550556666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46530910.

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 16000550556666 in words is "sixteen trillion, five hundred fifty million, five hundred fifty-six thousand, six hundred sixty-six".