656222163 has 8 divisors (see below), whose sum is σ = 880536528. Its totient is φ = 434694624.

The previous prime is 656222159. The next prime is 656222213. The reversal of 656222163 is 361222656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 656222163 - 2² = 656222159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656222113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 696156 + ... + 697097.

It is an arithmetic number, because the mean of its divisors is an integer number (110067066).

Almost surely, 2^656222163 is an apocalyptic number.

656222163 is a deficient number, since it is larger than the sum of its proper divisors (224314365).

656222163 is a wasteful number, since it uses less digits than its factorization.

656222163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393413.

The product of its digits is 25920, while the sum is 33.

The square root of 656222163 is about 25616.8335865306. The cubic root of 656222163 is about 868.9943737903.

The spelling of 656222163 in words is "six hundred fifty-six million, two hundred twenty-two thousand, one hundred sixty-three".