168896164 has 6 divisors (see below), whose sum is σ = 295568294. Its totient is φ = 84448080.

The previous prime is 168896137. The next prime is 168896171. The reversal of 168896164 is 461698861.

It can be written as a sum of positive squares in only one way, i.e., 99840064 + 69056100 = 9992^2 + 8310^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21112017 + ... + 21112024.

Almost surely, 2^168896164 is an apocalyptic number.

It is an amenable number.

168896164 is a deficient number, since it is larger than the sum of its proper divisors (126672130).

168896164 is a wasteful number, since it uses less digits than its factorization.

168896164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42224045 (or 42224043 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 168896164 is about 12996.0056940585. The cubic root of 168896164 is about 552.7642262442.

The spelling of 168896164 in words is "one hundred sixty-eight million, eight hundred ninety-six thousand, one hundred sixty-four".