20069496569 has 2 divisors, whose sum is σ = 20069496570. Its totient is φ = 20069496568.

The previous prime is 20069496539. The next prime is 20069496589. The reversal of 20069496569 is 96569496002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12918595600 + 7150900969 = 113660^2 + 84563^2 .

It is a cyclic number.

It is not a de Polignac number, because 20069496569 - 2¹⁶ = 20069431033 is a prime.

It is a super-2 number, since 2×20069496569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20069496539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10034748284 + 10034748285.

It is an arithmetic number, because the mean of its divisors is an integer number (10034748285).

Almost surely, 2^20069496569 is an apocalyptic number.

It is an amenable number.

20069496569 is a deficient number, since it is larger than the sum of its proper divisors (1).

20069496569 is an equidigital number, since it uses as much as digits as its factorization.

20069496569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 20069496569 in words is "twenty billion, sixty-nine million, four hundred ninety-six thousand, five hundred sixty-nine".