20522202165304 has 16 divisors (see below), whose sum is σ = 43976147497200. Its totient is φ = 8795229499392.

The previous prime is 20522202165233. The next prime is 20522202165317. The reversal of 20522202165304 is 40356120222502.

It is a super-2 number, since 2×20522202165304² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20522202165304.

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 3 ways as a sum of consecutive naturals, for example, 183233947849 + ... + 183233947960.

It is an arithmetic number, because the mean of its divisors is an integer number (2748509218575).

Almost surely, 2^{20522202165304} is an apocalyptic number.

It is an amenable number.

20522202165304 is an abundant number, since it is smaller than the sum of its proper divisors (23453945331896).

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

20522202165304 is a wasteful number, since it uses less digits than its factorization.

20522202165304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366467895822 (or 366467895818 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 20522202165304 its reverse (40356120222502), we get a palindrome (60878322387806).

The spelling of 20522202165304 in words is "twenty trillion, five hundred twenty-two billion, two hundred two million, one hundred sixty-five thousand, three hundred four".