680230155 has 16 divisors (see below), whose sum is σ = 1187311104. Its totient is φ = 329808480.

The previous prime is 680230151. The next prime is 680230189. The reversal of 680230155 is 551032086.

680230155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680230155 - 2² = 680230151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680230151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061139 + ... + 2061468.

It is an arithmetic number, because the mean of its divisors is an integer number (74206944).

Almost surely, 2^680230155 is an apocalyptic number.

680230155 is a deficient number, since it is larger than the sum of its proper divisors (507080949).

680230155 is a wasteful number, since it uses less digits than its factorization.

680230155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122626.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 680230155 is about 26081.2222681377. Note that the first 4 decimals coincide. The cubic root of 680230155 is about 879.4651342537.

The spelling of 680230155 in words is "six hundred eighty million, two hundred thirty thousand, one hundred fifty-five".