16442670133866 has 64 divisors (see below), whose sum is σ = 33311975316480. Its totient is φ = 5410353432960.

The previous prime is 16442670133793. The next prime is 16442670133867. The reversal of 16442670133866 is 66833107624461.

It is a happy number.

It is a super-3 number, since 3×16442670133866³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16442670133867) 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 31 ways as a sum of consecutive naturals, for example, 96534765 + ... + 96704943.

It is an arithmetic number, because the mean of its divisors is an integer number (520499614320).

Almost surely, 2^{16442670133866} is an apocalyptic number.

16442670133866 is an abundant number, since it is smaller than the sum of its proper divisors (16869305182614).

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

16442670133866 is a wasteful number, since it uses less digits than its factorization.

16442670133866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171019.

The product of its (nonzero) digits is 20901888, while the sum is 57.

The spelling of 16442670133866 in words is "sixteen trillion, four hundred forty-two billion, six hundred seventy million, one hundred thirty-three thousand, eight hundred sixty-six".