121768168 has 16 divisors (see below), whose sum is σ = 230060160. Its totient is φ = 60418800.

The previous prime is 121768123. The next prime is 121768177. The reversal of 121768168 is 861867121.

It is a self number, because there is not a number n which added to its sum of digits gives 121768168.

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, 57048 + ... + 59143.

It is an arithmetic number, because the mean of its divisors is an integer number (14378760).

Almost surely, 2^121768168 is an apocalyptic number.

It is an amenable number.

121768168 is a deficient number, since it is larger than the sum of its proper divisors (108291992).

121768168 is a wasteful number, since it uses less digits than its factorization.

121768168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116328 (or 116324 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 121768168 is about 11034.8614853110. The cubic root of 121768168 is about 495.6532110255.

The spelling of 121768168 in words is "one hundred twenty-one million, seven hundred sixty-eight thousand, one hundred sixty-eight".