16661052747267 has 8 divisors (see below), whose sum is σ = 22343145881424. Its totient is φ = 11043164055648.

The previous prime is 16661052747217. The next prime is 16661052747271. The reversal of 16661052747267 is 76274725016661.

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

It is not a de Polignac number, because 16661052747267 - 2¹⁹ = 16661052222979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16661052747267.

It is not an unprimeable number, because it can be changed into a prime (16661052747217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16051110028 + ... + 16051111065.

It is an arithmetic number, because the mean of its divisors is an integer number (2792893235178).

Almost surely, 2^{16661052747267} is an apocalyptic number.

16661052747267 is a deficient number, since it is larger than the sum of its proper divisors (5682093134157).

16661052747267 is a wasteful number, since it uses less digits than its factorization.

16661052747267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32102221269.

The product of its (nonzero) digits is 35562240, while the sum is 60.

The spelling of 16661052747267 in words is "sixteen trillion, six hundred sixty-one billion, fifty-two million, seven hundred forty-seven thousand, two hundred sixty-seven".