6400064046466 has 16 divisors (see below), whose sum is σ = 9636188868864. Its totient is φ = 3188006185104.

The previous prime is 6400064046463. The next prime is 6400064046473. The reversal of 6400064046466 is 6646404600046.

It is not an unprimeable number, because it can be changed into a prime (6400064046463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245636 + ... + 3788368.

It is an arithmetic number, because the mean of its divisors is an integer number (602261804304).

Almost surely, 2^{6400064046466} is an apocalyptic number.

6400064046466 is a deficient number, since it is larger than the sum of its proper divisors (3236124822398).

6400064046466 is a wasteful number, since it uses less digits than its factorization.

6400064046466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547465.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 6400064046466 in words is "six trillion, four hundred billion, sixty-four million, forty-six thousand, four hundred sixty-six".