655535320612 has 12 divisors (see below), whose sum is σ = 1186744977180. Its totient is φ = 316465327136.

The previous prime is 655535320607. The next prime is 655535320669. The reversal of 655535320612 is 216023535556.

It can be written as a sum of positive squares in 2 ways, for example, as 477226745856 + 178308574756 = 690816^2 + 422266^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2825583163 + ... + 2825583394.

It is an arithmetic number, because the mean of its divisors is an integer number (98895414765).

Almost surely, 2^655535320612 is an apocalyptic number.

It is an amenable number.

655535320612 is a deficient number, since it is larger than the sum of its proper divisors (531209656568).

655535320612 is a wasteful number, since it uses less digits than its factorization.

655535320612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651166590 (or 5651166588 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 655535320612 in words is "six hundred fifty-five billion, five hundred thirty-five million, three hundred twenty thousand, six hundred twelve".