656184513412 has 6 divisors (see below), whose sum is σ = 1148322898478. Its totient is φ = 328092256704.

The previous prime is 656184513401. The next prime is 656184513449. The reversal of 656184513412 is 214315481656.

It can be written as a sum of positive squares in only one way, i.e., 445628342916 + 210556170496 = 667554^2 + 458864^2 .

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 as a sum of consecutive naturals, namely, 82023064173 + ... + 82023064180.

Almost surely, 2^656184513412 is an apocalyptic number.

It is an amenable number.

656184513412 is a deficient number, since it is larger than the sum of its proper divisors (492138385066).

656184513412 is a wasteful number, since it uses less digits than its factorization.

656184513412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164046128357 (or 164046128355 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The spelling of 656184513412 in words is "six hundred fifty-six billion, one hundred eighty-four million, five hundred thirteen thousand, four hundred twelve".