168165668106 has 32 divisors (see below), whose sum is σ = 377194034880. Its totient is φ = 55531340208.

The previous prime is 168165668053. The next prime is 168165668107. The reversal of 168165668106 is 601866561861.

168165668106 is a `hidden beast` number, since 1 + 68 + 1 + 6 + 566 + 8 + 10 + 6 = 666.

168165668106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (168165668107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14546461 + ... + 14558016.

It is an arithmetic number, because the mean of its divisors is an integer number (11787313590).

Almost surely, 2^168165668106 is an apocalyptic number.

168165668106 is an abundant number, since it is smaller than the sum of its proper divisors (209028366774).

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

168165668106 is a wasteful number, since it uses less digits than its factorization.

168165668106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29104595 (or 29104589 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 168165668106 in words is "one hundred sixty-eight billion, one hundred sixty-five million, six hundred sixty-eight thousand, one hundred six".