656423163 has 16 divisors (see below), whose sum is σ = 1060886400. Its totient is φ = 397832040.

The previous prime is 656423093. The next prime is 656423167. The reversal of 656423163 is 361324656.

656423163 is a `hidden beast` number, since 6 + 5 + 642 + 3 + 1 + 6 + 3 = 666.

656423163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 656423163 - 2¹² = 656419067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656423167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104793 + ... + 1105386.

It is an arithmetic number, because the mean of its divisors is an integer number (66305400).

Almost surely, 2^656423163 is an apocalyptic number.

656423163 is a deficient number, since it is larger than the sum of its proper divisors (404463237).

656423163 is a wasteful number, since it uses less digits than its factorization.

656423163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210199 (or 2210193 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 656423163 is about 25620.7564876605. The cubic root of 656423163 is about 869.0830886841.

The spelling of 656423163 in words is "six hundred fifty-six million, four hundred twenty-three thousand, one hundred sixty-three".