6624642220422 has 32 divisors (see below), whose sum is σ = 13370581127904. Its totient is φ = 2188086048000.

The previous prime is 6624642220393. The next prime is 6624642220429. The reversal of 6624642220422 is 2240222464266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6624642220429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10710079 + ... + 11311722.

It is an arithmetic number, because the mean of its divisors is an integer number (417830660247).

Almost surely, 2^{6624642220422} is an apocalyptic number.

6624642220422 is an abundant number, since it is smaller than the sum of its proper divisors (6745938907482).

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

6624642220422 is a wasteful number, since it uses less digits than its factorization.

6624642220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22022264.

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

Adding to 6624642220422 its reverse (2240222464266), we get a palindrome (8864864684688).

The spelling of 6624642220422 in words is "six trillion, six hundred twenty-four billion, six hundred forty-two million, two hundred twenty thousand, four hundred twenty-two".