168571540606 has 16 divisors (see below), whose sum is σ = 292226749920. Its totient is φ = 71433204480.

The previous prime is 168571540589. The next prime is 168571540673. The reversal of 168571540606 is 606045175861.

It is a self number, because there is not a number n which added to its sum of digits gives 168571540606.

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 7 ways as a sum of consecutive naturals, for example, 67643835 + ... + 67646326.

It is an arithmetic number, because the mean of its divisors is an integer number (18264171870).

Almost surely, 2^168571540606 is an apocalyptic number.

168571540606 is a deficient number, since it is larger than the sum of its proper divisors (123655209314).

168571540606 is a wasteful number, since it uses less digits than its factorization.

168571540606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135290259.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 168571540606 in words is "one hundred sixty-eight billion, five hundred seventy-one million, five hundred forty thousand, six hundred six".