655112012 has 24 divisors (see below), whose sum is σ = 1173308976. Its totient is φ = 319936448.

The previous prime is 655112011. The next prime is 655112021. The reversal of 655112012 is 210211556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (655112011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41318 + ... + 54930.

It is an arithmetic number, because the mean of its divisors is an integer number (48887874).

Almost surely, 2^655112012 is an apocalyptic number.

It is an amenable number.

655112012 is a deficient number, since it is larger than the sum of its proper divisors (518196964).

655112012 is a wasteful number, since it uses less digits than its factorization.

655112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897 (or 13895 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 655112012 is about 25595.1560260921. The cubic root of 655112012 is about 868.5040624537.

Adding to 655112012 its reverse (210211556), we get a palindrome (865323568).

The spelling of 655112012 in words is "six hundred fifty-five million, one hundred twelve thousand, twelve".