655709612 has 6 divisors (see below), whose sum is σ = 1147491828. Its totient is φ = 327854804.

The previous prime is 655709611. The next prime is 655709629. The reversal of 655709612 is 216907556.

655709612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 655709612.

It is not an unprimeable number, because it can be changed into a prime (655709611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81963698 + ... + 81963705.

It is an arithmetic number, because the mean of its divisors is an integer number (191248638).

Almost surely, 2^655709612 is an apocalyptic number.

It is an amenable number.

655709612 is a deficient number, since it is larger than the sum of its proper divisors (491782216).

655709612 is a wasteful number, since it uses less digits than its factorization.

655709612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163927407 (or 163927405 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 655709612 is about 25606.8274489442. The cubic root of 655709612 is about 868.7680683439.

The spelling of 655709612 in words is "six hundred fifty-five million, seven hundred nine thousand, six hundred twelve".