656441822 has 4 divisors (see below), whose sum is σ = 984662736. Its totient is φ = 328220910.

The previous prime is 656441783. The next prime is 656441843. The reversal of 656441822 is 228144656.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164110454 + ... + 164110457.

It is an arithmetic number, because the mean of its divisors is an integer number (246165684).

Almost surely, 2^656441822 is an apocalyptic number.

656441822 is a deficient number, since it is larger than the sum of its proper divisors (328220914).

656441822 is a wasteful number, since it uses less digits than its factorization.

656441822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328220913.

The product of its digits is 92160, while the sum is 38.

The square root of 656441822 is about 25621.1206234232. The cubic root of 656441822 is about 869.0913232441.

The spelling of 656441822 in words is "six hundred fifty-six million, four hundred forty-one thousand, eight hundred twenty-two".