685141168 has 40 divisors (see below), whose sum is σ = 1383689216. Its totient is φ = 328276800.

The previous prime is 685141141. The next prime is 685141169. The reversal of 685141168 is 861141586.

It is a self number, because there is not a number n which added to its sum of digits gives 685141168.

It is not an unprimeable number, because it can be changed into a prime (685141169) 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, 44383 + ... + 57793.

Almost surely, 2^685141168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685141168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691844608).

685141168 is an abundant number, since it is smaller than the sum of its proper divisors (698548048).

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

685141168 is a wasteful number, since it uses less digits than its factorization.

685141168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13553 (or 13547 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 685141168 is about 26175.2013936856. The cubic root of 685141168 is about 881.5765334338.

The spelling of 685141168 in words is "six hundred eighty-five million, one hundred forty-one thousand, one hundred sixty-eight".