6442222161522 has 16 divisors (see below), whose sum is σ = 14725079226432. Its totient is φ = 1840634903280.

The previous prime is 6442222161521. The next prime is 6442222161527. The reversal of 6442222161522 is 2251612222446.

It is not an unprimeable number, because it can be changed into a prime (6442222161521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76693120929 + ... + 76693121012.

It is an arithmetic number, because the mean of its divisors is an integer number (920317451652).

Almost surely, 2^{6442222161522} is an apocalyptic number.

6442222161522 is an abundant number, since it is smaller than the sum of its proper divisors (8282857064910).

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

6442222161522 is a wasteful number, since it uses less digits than its factorization.

6442222161522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153386241953.

The product of its digits is 184320, while the sum is 39.

Adding to 6442222161522 its reverse (2251612222446), we get a palindrome (8693834383968).

The spelling of 6442222161522 in words is "six trillion, four hundred forty-two billion, two hundred twenty-two million, one hundred sixty-one thousand, five hundred twenty-two".