6442556022 has 32 divisors (see below), whose sum is σ = 16362048000. Its totient is φ = 1840730184.

The previous prime is 6442555993. The next prime is 6442556023. The reversal of 6442556022 is 2206552446.

6442556022 is a `hidden beast` number, since 6 + 4 + 42 + 5 + 5 + 602 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442556023) 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, 8521522 + ... + 8522277.

It is an arithmetic number, because the mean of its divisors is an integer number (511314000).

Almost surely, 2^6442556022 is an apocalyptic number.

6442556022 is an abundant number, since it is smaller than the sum of its proper divisors (9919491978).

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

6442556022 is a wasteful number, since it uses less digits than its factorization.

6442556022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17043817 (or 17043811 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6442556022 is about 80265.5344590690. The cubic root of 6442556022 is about 1860.7416033384.

The spelling of 6442556022 in words is "six billion, four hundred forty-two million, five hundred fifty-six thousand, twenty-two".