978183168 has 44 divisors (see below), whose sum is σ = 2607222960. Its totient is φ = 326060032.

The previous prime is 978183131. The next prime is 978183287. The reversal of 978183168 is 861381879.

It is a self number, because there is not a number n which added to its sum of digits gives 978183168.

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, 156138 + ... + 162281.

Almost surely, 2^978183168 is an apocalyptic number.

It is an amenable number.

978183168 is an abundant number, since it is smaller than the sum of its proper divisors (1629039792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978183168 is a wasteful number, since it uses less digits than its factorization.

978183168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318442 (or 318424 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 978183168 is about 31275.9199385086. The cubic root of 978183168 is about 992.6741861712.

The spelling of 978183168 in words is "nine hundred seventy-eight million, one hundred eighty-three thousand, one hundred sixty-eight".