168021860471 has 8 divisors (see below), whose sum is σ = 169012116000. Its totient is φ = 167031824032.

The previous prime is 168021860459. The next prime is 168021860473. The reversal of 168021860471 is 174068120861.

168021860471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168021860471 - 2⁶ = 168021860407 is a prime.

It is a super-3 number, since 3×168021860471³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168021860473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636766 + ... + 1736388.

It is an arithmetic number, because the mean of its divisors is an integer number (21126514500).

Almost surely, 2^168021860471 is an apocalyptic number.

168021860471 is a deficient number, since it is larger than the sum of its proper divisors (990255529).

168021860471 is an equidigital number, since it uses as much as digits as its factorization.

168021860471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109545.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 168021860471 in words is "one hundred sixty-eight billion, twenty-one million, eight hundred sixty thousand, four hundred seventy-one".