16868688867020 has 24 divisors (see below), whose sum is σ = 35428143630768. Its totient is φ = 6746733259200.

The previous prime is 16868688867013. The next prime is 16868688867073. The reversal of 16868688867020 is 2076888686861.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46206611 + ... + 46570250.

It is an arithmetic number, because the mean of its divisors is an integer number (1476172651282).

Almost surely, 2^{16868688867020} is an apocalyptic number.

16868688867020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16868688867020 is an abundant number, since it is smaller than the sum of its proper divisors (18559454763748).

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

16868688867020 is a wasteful number, since it uses less digits than its factorization.

16868688867020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92785961 (or 92785959 counting only the distinct ones).

The product of its (nonzero) digits is 594542592, while the sum is 74.

The spelling of 16868688867020 in words is "sixteen trillion, eight hundred sixty-eight billion, six hundred eighty-eight million, eight hundred sixty-seven thousand, twenty".