6642620244222 has 16 divisors (see below), whose sum is σ = 13330582609680. Its totient is φ = 2206649727872.

The previous prime is 6642620244163. The next prime is 6642620244277. The reversal of 6642620244222 is 2224420262466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889253147 + ... + 1889256662.

It is an arithmetic number, because the mean of its divisors is an integer number (833161413105).

Almost surely, 2^{6642620244222} is an apocalyptic number.

6642620244222 is an abundant number, since it is smaller than the sum of its proper divisors (6687962365458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6642620244222 is a wasteful number, since it uses less digits than its factorization.

6642620244222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778510107.

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 6642620244222 in words is "six trillion, six hundred forty-two billion, six hundred twenty million, two hundred forty-four thousand, two hundred twenty-two".