16866868516852 has 12 divisors (see below), whose sum is σ = 29519494794720. Its totient is φ = 8432727146936.

The previous prime is 16866868516753. The next prime is 16866868516853. The reversal of 16866868516852 is 25861586866861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866868516853) 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 3 ways as a sum of consecutive naturals, for example, 176724202 + ... + 176819617.

It is an arithmetic number, because the mean of its divisors is an integer number (2459957899560).

Almost surely, 2^{16866868516852} is an apocalyptic number.

It is an amenable number.

16866868516852 is a deficient number, since it is larger than the sum of its proper divisors (12652626277868).

16866868516852 is a wasteful number, since it uses less digits than its factorization.

16866868516852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353555750 (or 353555748 counting only the distinct ones).

The product of its digits is 1592524800, while the sum is 76.

The spelling of 16866868516852 in words is "sixteen trillion, eight hundred sixty-six billion, eight hundred sixty-eight million, five hundred sixteen thousand, eight hundred fifty-two".