655105012 has 12 divisors (see below), whose sum is σ = 1185966180. Its totient is φ = 316257536.

The previous prime is 655104997. The next prime is 655105057. The reversal of 655105012 is 210501556.

655105012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 498003856 + 157101156 = 22316^2 + 12534^2 .

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, 2823613 + ... + 2823844.

It is an arithmetic number, because the mean of its divisors is an integer number (98830515).

Almost surely, 2^655105012 is an apocalyptic number.

It is an amenable number.

655105012 is a deficient number, since it is larger than the sum of its proper divisors (530861168).

655105012 is a wasteful number, since it uses less digits than its factorization.

655105012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5647490 (or 5647488 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 655105012 is about 25595.0192811023. The cubic root of 655105012 is about 868.5009690641.

Adding to 655105012 its reverse (210501556), we get a palindrome (865606568).

The spelling of 655105012 in words is "six hundred fifty-five million, one hundred five thousand, twelve".