680195164 has 12 divisors (see below), whose sum is σ = 1298554488. Its totient is φ = 309179600.

The previous prime is 680195107. The next prime is 680195171. The reversal of 680195164 is 461591086.

It is a super-2 number, since 2×680195164² = 925330922257973792, which contains 22 as substring.

It is a congruent number.

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, 7729447 + ... + 7729534.

It is an arithmetic number, because the mean of its divisors is an integer number (108212874).

Almost surely, 2^680195164 is an apocalyptic number.

It is an amenable number.

680195164 is a deficient number, since it is larger than the sum of its proper divisors (618359324).

680195164 is a wasteful number, since it uses less digits than its factorization.

680195164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15458996 (or 15458994 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 680195164 is about 26080.5514512251. The cubic root of 680195164 is about 879.4500541165.

The spelling of 680195164 in words is "six hundred eighty million, one hundred ninety-five thousand, one hundred sixty-four".