6464260220044 has 24 divisors (see below), whose sum is σ = 12438032560128. Its totient is φ = 2915163876240.

The previous prime is 6464260220017. The next prime is 6464260220057. The reversal of 6464260220044 is 4400220624646.

It is a junction number, because it is equal to n+sod(n) for n = 6464260219979 and 6464260220006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578399944 + ... + 578411119.

It is an arithmetic number, because the mean of its divisors is an integer number (518251356672).

Almost surely, 2^{6464260220044} is an apocalyptic number.

It is an amenable number.

6464260220044 is a deficient number, since it is larger than the sum of its proper divisors (5973772340084).

6464260220044 is a wasteful number, since it uses less digits than its factorization.

6464260220044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156811205 (or 1156811203 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 6464260220044 in words is "six trillion, four hundred sixty-four billion, two hundred sixty million, two hundred twenty thousand, forty-four".