168416668996 has 27 divisors (see below), whose sum is σ = 296034820599. Its totient is φ = 83836935168.

The previous prime is 168416668993. The next prime is 168416669021. The reversal of 168416668996 is 699866614861.

The square root of 168416668996 is 410386.

It is a perfect power (a square), and thus also a powerful number.

168416668996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41726232900 + 126690436096 = 204270^2 + 355936^2 .

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168416668993) 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 8 ways as a sum of consecutive naturals, for example, 368526400 + ... + 368526856.

Almost surely, 2^168416668996 is an apocalyptic number.

168416668996 is the 410386-th square number.

It is an amenable number.

168416668996 is a deficient number, since it is larger than the sum of its proper divisors (127618151603).

168416668996 is an frugal number, since it uses more digits than its factorization.

168416668996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 908 counting only the distinct ones).

The product of its digits is 161243136, while the sum is 70.

The spelling of 168416668996 in words is "one hundred sixty-eight billion, four hundred sixteen million, six hundred sixty-eight thousand, nine hundred ninety-six".