168072042663478 has 8 divisors (see below), whose sum is σ = 252682342046640. Its totient is φ = 83844595314600.

The previous prime is 168072042663401. The next prime is 168072042663517. The reversal of 168072042663478 is 874366240270861.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95713007473 + ... + 95713009228.

It is an arithmetic number, because the mean of its divisors is an integer number (31585292755830).

Almost surely, 2^{168072042663478} is an apocalyptic number.

168072042663478 is a deficient number, since it is larger than the sum of its proper divisors (84610299383162).

168072042663478 is a wasteful number, since it uses less digits than its factorization.

168072042663478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191426017142.

The product of its (nonzero) digits is 130056192, while the sum is 64.

The spelling of 168072042663478 in words is "one hundred sixty-eight trillion, seventy-two billion, forty-two million, six hundred sixty-three thousand, four hundred seventy-eight".