168617966 has 8 divisors (see below), whose sum is σ = 275920344. Its totient is φ = 76644520.

The previous prime is 168617947. The next prime is 168617987. The reversal of 168617966 is 669716861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3832205 + ... + 3832248.

It is an arithmetic number, because the mean of its divisors is an integer number (34490043).

Almost surely, 2^168617966 is an apocalyptic number.

168617966 is a deficient number, since it is larger than the sum of its proper divisors (107302378).

168617966 is a wasteful number, since it uses less digits than its factorization.

168617966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664466.

The product of its digits is 653184, while the sum is 50.

The square root of 168617966 is about 12985.2980712805. The cubic root of 168617966 is about 552.4605635126.

The spelling of 168617966 in words is "one hundred sixty-eight million, six hundred seventeen thousand, nine hundred sixty-six".