656130646223 has 16 divisors (see below), whose sum is σ = 737474658816. Its totient is φ = 579207736800.

The previous prime is 656130646211. The next prime is 656130646253. The reversal of 656130646223 is 322646031656.

It is a cyclic number.

It is not a de Polignac number, because 656130646223 - 2³⁶ = 587411169487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656130646253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258736 + ... + 1701962.

It is an arithmetic number, because the mean of its divisors is an integer number (46092166176).

Almost surely, 2^656130646223 is an apocalyptic number.

656130646223 is a deficient number, since it is larger than the sum of its proper divisors (81344012593).

656130646223 is a wasteful number, since it uses less digits than its factorization.

656130646223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448214.

The product of its (nonzero) digits is 933120, while the sum is 44.

Adding to 656130646223 its reverse (322646031656), we get a palindrome (978776677879).

The spelling of 656130646223 in words is "six hundred fifty-six billion, one hundred thirty million, six hundred forty-six thousand, two hundred twenty-three".