168516842664 has 16 divisors (see below), whose sum is σ = 421292106720. Its totient is φ = 56172280880.

The previous prime is 168516842621. The next prime is 168516842693. The reversal of 168516842664 is 466248615861.

168516842664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168516842664² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3510767532 + ... + 3510767579.

It is an arithmetic number, because the mean of its divisors is an integer number (26330756670).

Almost surely, 2^168516842664 is an apocalyptic number.

It is an amenable number.

168516842664 is an abundant number, since it is smaller than the sum of its proper divisors (252775264056).

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

168516842664 is a wasteful number, since it uses less digits than its factorization.

168516842664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021535120 (or 7021535116 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 57.

The spelling of 168516842664 in words is "one hundred sixty-eight billion, five hundred sixteen million, eight hundred forty-two thousand, six hundred sixty-four".