20658269063 has 2 divisors, whose sum is σ = 20658269064. Its totient is φ = 20658269062.

The previous prime is 20658268993. The next prime is 20658269069. The reversal of 20658269063 is 36096285602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20658269063 - 2¹⁰ = 20658268039 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20658268999 and 20658269017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20658269069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10329134531 + 10329134532.

It is an arithmetic number, because the mean of its divisors is an integer number (10329134532).

Almost surely, 2^20658269063 is an apocalyptic number.

20658269063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20658269063 is an equidigital number, since it uses as much as digits as its factorization.

20658269063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 20658269063 in words is "twenty billion, six hundred fifty-eight million, two hundred sixty-nine thousand, sixty-three".