655418812 has 12 divisors (see below), whose sum is σ = 1147163976. Its totient is φ = 327657680.

The previous prime is 655418809. The next prime is 655418837. The reversal of 655418812 is 218814556.

It is a happy number.

655418812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 36987 + ... + 51757.

It is an arithmetic number, because the mean of its divisors is an integer number (95596998).

Almost surely, 2^655418812 is an apocalyptic number.

It is an amenable number.

655418812 is a deficient number, since it is larger than the sum of its proper divisors (491745164).

655418812 is a wasteful number, since it uses less digits than its factorization.

655418812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25868 (or 25866 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 655418812 is about 25601.1486461057. The cubic root of 655418812 is about 868.6396196596.

The spelling of 655418812 in words is "six hundred fifty-five million, four hundred eighteen thousand, eight hundred twelve".