168073304478 has 8 divisors (see below), whose sum is σ = 336146608968. Its totient is φ = 56024434824.

The previous prime is 168073304437. The next prime is 168073304479. The reversal of 168073304478 is 874403370861.

It is a happy number.

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

168073304478 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 168073304478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168073304479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14006108701 + ... + 14006108712.

It is an arithmetic number, because the mean of its divisors is an integer number (42018326121).

Almost surely, 2^168073304478 is an apocalyptic number.

168073304478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

168073304478 is a wasteful number, since it uses less digits than its factorization.

168073304478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28012217418.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 168073304478 in words is "one hundred sixty-eight billion, seventy-three million, three hundred four thousand, four hundred seventy-eight".