168502018680 has 48 divisors (see below), whose sum is σ = 547631561880. Its totient is φ = 44933871552.

The previous prime is 168502018669. The next prime is 168502018697. The reversal of 168502018680 is 86810205861.

168502018680 is a `hidden beast` number, since 1 + 68 + 502 + 0 + 1 + 8 + 6 + 80 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234030222 + ... + 234030941.

Almost surely, 2^168502018680 is an apocalyptic number.

168502018680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168502018680 is an abundant number, since it is smaller than the sum of its proper divisors (379129543200).

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

168502018680 is a wasteful number, since it uses less digits than its factorization.

168502018680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468061180 (or 468061173 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 168502018680 in words is "one hundred sixty-eight billion, five hundred two million, eighteen thousand, six hundred eighty".