168342352542 has 512 divisors, whose sum is σ = 521153740800. Its totient is φ = 38971570176.

The previous prime is 168342352531. The next prime is 168342352579. The reversal of 168342352542 is 245253243861.

168342352542 is a `hidden beast` number, since 1 + 6 + 8 + 34 + 23 + 52 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 106343083 + ... + 106344665.

It is an arithmetic number, because the mean of its divisors is an integer number (1017878400).

Almost surely, 2^168342352542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168342352542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260576870400).

168342352542 is an abundant number, since it is smaller than the sum of its proper divisors (352811388258).

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

168342352542 is a wasteful number, since it uses less digits than its factorization.

168342352542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1711 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 168342352542 in words is "one hundred sixty-eight billion, three hundred forty-two million, three hundred fifty-two thousand, five hundred forty-two".