656120216 has 16 divisors (see below), whose sum is σ = 1230762600. Its totient is φ = 327916864.

The previous prime is 656120207. The next prime is 656120221. The reversal of 656120216 is 612021656.

656120216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2996 + ... + 36348.

Almost surely, 2^656120216 is an apocalyptic number.

It is an amenable number.

656120216 is a deficient number, since it is larger than the sum of its proper divisors (574642384).

656120216 is a wasteful number, since it uses less digits than its factorization.

656120216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35818 (or 35814 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 656120216 is about 25614.8436653437. The cubic root of 656120216 is about 868.9493707600.

The spelling of 656120216 in words is "six hundred fifty-six million, one hundred twenty thousand, two hundred sixteen".