20065303501 has 2 divisors, whose sum is σ = 20065303502. Its totient is φ = 20065303500.

The previous prime is 20065303481. The next prime is 20065303519. The reversal of 20065303501 is 10530356002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19411734276 + 653569225 = 139326^2 + 25565^2 .

It is a cyclic number.

It is not a de Polignac number, because 20065303501 - 2¹⁵ = 20065270733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20065303301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032651750 + 10032651751.

It is an arithmetic number, because the mean of its divisors is an integer number (10032651751).

Almost surely, 2^20065303501 is an apocalyptic number.

It is an amenable number.

20065303501 is a deficient number, since it is larger than the sum of its proper divisors (1).

20065303501 is an equidigital number, since it uses as much as digits as its factorization.

20065303501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 20065303501 its reverse (10530356002), we get a palindrome (30595659503).

The spelling of 20065303501 in words is "twenty billion, sixty-five million, three hundred three thousand, five hundred one".