16317706021866 has 24 divisors (see below), whose sum is σ = 35685450556704. Its totient is φ = 5388401364840.

The previous prime is 16317706021831. The next prime is 16317706021867. The reversal of 16317706021866 is 66812060771361.

16317706021866 is a `hidden beast` number, since 1 + 6 + 3 + 17 + 7 + 0 + 602 + 18 + 6 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (16317706021867) 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 11 ways as a sum of consecutive naturals, for example, 4236162670 + ... + 4236166521.

It is an arithmetic number, because the mean of its divisors is an integer number (1486893773196).

Almost surely, 2^{16317706021866} is an apocalyptic number.

16317706021866 is an abundant number, since it is smaller than the sum of its proper divisors (19367744534838).

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

16317706021866 is a wasteful number, since it uses less digits than its factorization.

16317706021866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8472329306 (or 8472329303 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 16317706021866 in words is "sixteen trillion, three hundred seventeen billion, seven hundred six million, twenty-one thousand, eight hundred sixty-six".