655366812 has 12 divisors (see below), whose sum is σ = 1529189256. Its totient is φ = 218455600.

The previous prime is 655366799. The next prime is 655366841. The reversal of 655366812 is 218663556.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 27306939 + ... + 27306962.

It is an arithmetic number, because the mean of its divisors is an integer number (127432438).

Almost surely, 2^655366812 is an apocalyptic number.

It is an amenable number.

655366812 is an abundant number, since it is smaller than the sum of its proper divisors (873822444).

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

655366812 is a wasteful number, since it uses less digits than its factorization.

655366812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54613908 (or 54613906 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 655366812 is about 25600.1330465293. The cubic root of 655366812 is about 868.6166468398.

The spelling of 655366812 in words is "six hundred fifty-five million, three hundred sixty-six thousand, eight hundred twelve".