168778104 has 32 divisors (see below), whose sum is σ = 460304640. Its totient is φ = 51144800.

The previous prime is 168778097. The next prime is 168778133. The reversal of 168778104 is 401877861.

It is a happy number.

168778104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319392 + ... + 319919.

It is an arithmetic number, because the mean of its divisors is an integer number (14384520).

Almost surely, 2^168778104 is an apocalyptic number.

It is an amenable number.

168778104 is an abundant number, since it is smaller than the sum of its proper divisors (291526536).

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

168778104 is a wasteful number, since it uses less digits than its factorization.

168778104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639331 (or 639327 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 168778104 is about 12991.4627351965. The cubic root of 168778104 is about 552.6354004328.

The spelling of 168778104 in words is "one hundred sixty-eight million, seven hundred seventy-eight thousand, one hundred four".