20352202061 has 2 divisors, whose sum is σ = 20352202062. Its totient is φ = 20352202060.

The previous prime is 20352202049. The next prime is 20352202081. The reversal of 20352202061 is 16020225302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19451601961 + 900600100 = 139469^2 + 30010^2 .

It is a cyclic number.

It is not a de Polignac number, because 20352202061 - 2⁶ = 20352201997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20352202081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176101030 + 10176101031.

It is an arithmetic number, because the mean of its divisors is an integer number (10176101031).

Almost surely, 2^20352202061 is an apocalyptic number.

It is an amenable number.

20352202061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352202061 is an equidigital number, since it uses as much as digits as its factorization.

20352202061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20352202061 its reverse (16020225302), we get a palindrome (36372427363).

The spelling of 20352202061 in words is "twenty billion, three hundred fifty-two million, two hundred two thousand, sixty-one".