622252522161 has 12 divisors (see below), whose sum is σ = 907708300980. Its totient is φ = 410727736800.

The previous prime is 622252522127. The next prime is 622252522187. The reversal of 622252522161 is 161225252226.

622252522161 is a `hidden beast` number, since 6 + 2 + 22 + 52 + 522 + 1 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 558524549025 + 63727973136 = 747345^2 + 252444^2 .

It is a de Polignac number, because none of the positive numbers 2^k-622252522161 is a prime.

It is a super-3 number, since 3×622252522161³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (622250522161) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 342272206 + ... + 342274023.

It is an arithmetic number, because the mean of its divisors is an integer number (75642358415).

Almost surely, 2^622252522161 is an apocalyptic number.

It is an amenable number.

622252522161 is a deficient number, since it is larger than the sum of its proper divisors (285455778819).

622252522161 is a wasteful number, since it uses less digits than its factorization.

622252522161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684546336 (or 684546333 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 622252522161 its reverse (161225252226), we get a palindrome (783477774387).

The spelling of 622252522161 in words is "six hundred twenty-two billion, two hundred fifty-two million, five hundred twenty-two thousand, one hundred sixty-one".