168968506 has 16 divisors (see below), whose sum is σ = 293985216. Its totient is φ = 71333856.

The previous prime is 168968489. The next prime is 168968509. The reversal of 168968506 is 605869861.

It is a super-3 number, since 3×168968506³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168968506.

It is not an unprimeable number, because it can be changed into a prime (168968509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89131 + ... + 91006.

It is an arithmetic number, because the mean of its divisors is an integer number (18374076).

Almost surely, 2^168968506 is an apocalyptic number.

168968506 is a deficient number, since it is larger than the sum of its proper divisors (125016710).

168968506 is a wasteful number, since it uses less digits than its factorization.

168968506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180213.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 168968506 is about 12998.7886358691. The cubic root of 168968506 is about 552.8431354012.

The spelling of 168968506 in words is "one hundred sixty-eight million, nine hundred sixty-eight thousand, five hundred six".