656022330 has 48 divisors (see below), whose sum is σ = 1779822720. Its totient is φ = 167332704.

The previous prime is 656022281. The next prime is 656022331. The reversal of 656022330 is 33220656.

656022330 is a `hidden beast` number, since 6 + 5 + 602 + 23 + 30 = 666.

656022330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 656022294 and 656022303.

It is not an unprimeable number, because it can be changed into a prime (656022331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156390 + ... + 160529.

It is an arithmetic number, because the mean of its divisors is an integer number (37079640).

Almost surely, 2^656022330 is an apocalyptic number.

656022330 is an abundant number, since it is smaller than the sum of its proper divisors (1123800390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656022330 is a wasteful number, since it uses less digits than its factorization.

656022330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316955 (or 316952 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 656022330 is about 25612.9328660347. The cubic root of 656022330 is about 868.9061560125.

Adding to 656022330 its reverse (33220656), we get a palindrome (689242986).

The spelling of 656022330 in words is "six hundred fifty-six million, twenty-two thousand, three hundred thirty".