656066223130 has 8 divisors (see below), whose sum is σ = 1180919201652. Its totient is φ = 262426489248.

The previous prime is 656066223101. The next prime is 656066223157. The reversal of 656066223130 is 31322660656.

It can be written as a sum of positive squares in 2 ways, for example, as 649624716049 + 6441507081 = 805993^2 + 80259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32803311147 + ... + 32803311166.

Almost surely, 2^656066223130 is an apocalyptic number.

656066223130 is a deficient number, since it is larger than the sum of its proper divisors (524852978522).

656066223130 is a wasteful number, since it uses less digits than its factorization.

656066223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65606622320.

The product of its (nonzero) digits is 233280, while the sum is 40.

Adding to 656066223130 its reverse (31322660656), we get a palindrome (687388883786).

The spelling of 656066223130 in words is "six hundred fifty-six billion, sixty-six million, two hundred twenty-three thousand, one hundred thirty".