20522205061 has 8 divisors (see below), whose sum is σ = 21732715584. Its totient is φ = 19312063680.

The previous prime is 20522205037. The next prime is 20522205073. The reversal of 20522205061 is 16050222502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20522205061 - 2⁷ = 20522204933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522203061) 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, 26566 + ... + 204328.

It is an arithmetic number, because the mean of its divisors is an integer number (2716589448).

Almost surely, 2^20522205061 is an apocalyptic number.

It is an amenable number.

20522205061 is a deficient number, since it is larger than the sum of its proper divisors (1210510523).

20522205061 is a wasteful number, since it uses less digits than its factorization.

20522205061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184571.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20522205061 its reverse (16050222502), we get a palindrome (36572427563).

The spelling of 20522205061 in words is "twenty billion, five hundred twenty-two million, two hundred five thousand, sixty-one".