20615425322 has 12 divisors (see below), whose sum is σ = 31232369958. Its totient is φ = 10205646000.

The previous prime is 20615425321. The next prime is 20615425349. The reversal of 20615425322 is 22352451602.

It can be written as a sum of positive squares in 3 ways, for example, as 20021967001 + 593458321 = 141499^2 + 24361^2 .

It is a super-2 number, since 2×20615425322² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20615425321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 484829 + ... + 525632.

Almost surely, 2^20615425322 is an apocalyptic number.

20615425322 is a deficient number, since it is larger than the sum of its proper divisors (10616944636).

20615425322 is a wasteful number, since it uses less digits than its factorization.

20615425322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010665 (or 1010564 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20615425322 its reverse (22352451602), we get a palindrome (42967876924).

The spelling of 20615425322 in words is "twenty billion, six hundred fifteen million, four hundred twenty-five thousand, three hundred twenty-two".