656641130 has 32 divisors (see below), whose sum is σ = 1191490560. Its totient is φ = 260547840.

The previous prime is 656641129. The next prime is 656641147. The reversal of 656641130 is 31146656.

656641130 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912911 + ... + 913629.

It is an arithmetic number, because the mean of its divisors is an integer number (37234080).

Almost surely, 2^656641130 is an apocalyptic number.

656641130 is a deficient number, since it is larger than the sum of its proper divisors (534849430).

656641130 is a wasteful number, since it uses less digits than its factorization.

656641130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 656641130 is about 25625.0098536566. The cubic root of 656641130 is about 869.1792717974.

Adding to 656641130 its reverse (31146656), we get a palindrome (687787786).

The spelling of 656641130 in words is "six hundred fifty-six million, six hundred forty-one thousand, one hundred thirty".