168040305020471 has 8 divisors (see below), whose sum is σ = 180967030209840. Its totient is φ = 155113658099712.

The previous prime is 168040305020459. The next prime is 168040305020507. The reversal of 168040305020471 is 174020503040861.

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

It is not a de Polignac number, because 168040305020471 - 2¹⁸ = 168040304758327 is a prime.

It is a super-3 number, since 3×168040305020471³ (a number of 44 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 (168040305020411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15069770 + ... + 23731383.

It is an arithmetic number, because the mean of its divisors is an integer number (22620878776230).

Almost surely, 2^{168040305020471} is an apocalyptic number.

168040305020471 is a deficient number, since it is larger than the sum of its proper divisors (12926725189369).

168040305020471 is a wasteful number, since it uses less digits than its factorization.

168040305020471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39134305.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 168040305020471 in words is "one hundred sixty-eight trillion, forty billion, three hundred five million, twenty thousand, four hundred seventy-one".