680522112 has 96 divisors (see below), whose sum is σ = 1963912080. Its totient is φ = 226188288.

The previous prime is 680522111. The next prime is 680522123. The reversal of 680522112 is 211225086.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×680522112² = 926220689841881088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680522111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560418 + ... + 561630.

Almost surely, 2^680522112 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 680522112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981956040).

680522112 is an abundant number, since it is smaller than the sum of its proper divisors (1283389968).

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

680522112 is a wasteful number, since it uses less digits than its factorization.

680522112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 680522112 is about 26086.8187405057. The cubic root of 680522112 is about 879.5909393576.

Adding to 680522112 its reverse (211225086), we get a palindrome (891747198).

The spelling of 680522112 in words is "six hundred eighty million, five hundred twenty-two thousand, one hundred twelve".