168542078 has 8 divisors (see below), whose sum is σ = 254327472. Its totient is φ = 83766256.

The previous prime is 168542053. The next prime is 168542089. The reversal of 168542078 is 870245861.

168542078 is digitally balanced in base 3, 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 Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251975 + ... + 252642.

It is an arithmetic number, because the mean of its divisors is an integer number (31790934).

Almost surely, 2^168542078 is an apocalyptic number.

168542078 is a deficient number, since it is larger than the sum of its proper divisors (85785394).

168542078 is a wasteful number, since it uses less digits than its factorization.

168542078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504786.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 168542078 is about 12982.3756685747. The cubic root of 168542078 is about 552.3776711625.

The spelling of 168542078 in words is "one hundred sixty-eight million, five hundred forty-two thousand, seventy-eight".