646223056082 has 54 divisors (see below), whose sum is σ = 1067365663533. Its totient is φ = 293363933184.

The previous prime is 646223056033. The next prime is 646223056121. The reversal of 646223056082 is 280650322646.

It can be written as a sum of positive squares in 14 ways, for example, as 224023302721 + 422199753361 = 473311^2 + 649769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=568429.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 560470418 + ... + 560471570.

Almost surely, 2^646223056082 is an apocalyptic number.

646223056082 is a deficient number, since it is larger than the sum of its proper divisors (421142607451).

646223056082 is an equidigital number, since it uses as much as digits as its factorization.

646223056082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 646223056082 in words is "six hundred forty-six billion, two hundred twenty-three million, fifty-six thousand, eighty-two".