646116325130 has 8 divisors (see below), whose sum is σ = 1163009385252. Its totient is φ = 258446530048.

The previous prime is 646116325123. The next prime is 646116325189. The reversal of 646116325130 is 31523611646.

646116325130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 586236766921 + 59879558209 = 765661^2 + 244703^2 .

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, 32305816247 + ... + 32305816266.

Almost surely, 2^646116325130 is an apocalyptic number.

646116325130 is a deficient number, since it is larger than the sum of its proper divisors (516893060122).

646116325130 is a wasteful number, since it uses less digits than its factorization.

646116325130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64611632520.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 646116325130 its reverse (31523611646), we get a palindrome (677639936776).

The spelling of 646116325130 in words is "six hundred forty-six billion, one hundred sixteen million, three hundred twenty-five thousand, one hundred thirty".