168986680 has 16 divisors (see below), whose sum is σ = 380220120. Its totient is φ = 67594656.

The previous prime is 168986651. The next prime is 168986693. The reversal of 168986680 is 86689861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2112294 + ... + 2112373.

Almost surely, 2^168986680 is an apocalyptic number.

168986680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168986680 is an abundant number, since it is smaller than the sum of its proper divisors (211233440).

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

168986680 is a wasteful number, since it uses less digits than its factorization.

168986680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224678 (or 4224674 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 168986680 is about 12999.4876822127. The cubic root of 168986680 is about 552.8629556844.

The spelling of 168986680 in words is "one hundred sixty-eight million, nine hundred eighty-six thousand, six hundred eighty".