680219168 has 24 divisors (see below), whose sum is σ = 1354234140. Its totient is φ = 336286720.

The previous prime is 680219161. The next prime is 680219173. The reversal of 680219168 is 861912086.

It can be written as a sum of positive squares in 2 ways, for example, as 590878864 + 89340304 = 24308^2 + 9452^2 .

It is a super-2 number, since 2×680219168² = 925396233029224448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680219161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116573 + ... + 122268.

Almost surely, 2^680219168 is an apocalyptic number.

It is an amenable number.

680219168 is a deficient number, since it is larger than the sum of its proper divisors (674014972).

680219168 is a wasteful number, since it uses less digits than its factorization.

680219168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238940 (or 238932 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 680219168 is about 26081.0116368211. The cubic root of 680219168 is about 879.4603992213.

The spelling of 680219168 in words is "six hundred eighty million, two hundred nineteen thousand, one hundred sixty-eight".