6642206222464 has 32 divisors (see below), whose sum is σ = 13233132792000. Its totient is φ = 3320949364992.

The previous prime is 6642206222453. The next prime is 6642206222467. The reversal of 6642206222464 is 4642226022466.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (6642206222467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600029 + ... + 3980515.

It is an arithmetic number, because the mean of its divisors is an integer number (413535399750).

Almost surely, 2^{6642206222464} is an apocalyptic number.

6642206222464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6642206222464 is a deficient number, since it is larger than the sum of its proper divisors (6590926569536).

6642206222464 is a wasteful number, since it uses less digits than its factorization.

6642206222464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402300 (or 2402288 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 6642206222464 in words is "six trillion, six hundred forty-two billion, two hundred six million, two hundred twenty-two thousand, four hundred sixty-four".