20206715329 has 2 divisors, whose sum is σ = 20206715330. Its totient is φ = 20206715328.

The previous prime is 20206715227. The next prime is 20206715411. The reversal of 20206715329 is 92351760202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20095897600 + 110817729 = 141760^2 + 10527^2 .

It is a cyclic number.

It is not a de Polignac number, because 20206715329 - 2⁷ = 20206715201 is a prime.

It is a super-2 number, since 2×20206715329² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20206715429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103357664 + 10103357665.

It is an arithmetic number, because the mean of its divisors is an integer number (10103357665).

Almost surely, 2^20206715329 is an apocalyptic number.

It is an amenable number.

20206715329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20206715329 is an equidigital number, since it uses as much as digits as its factorization.

20206715329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 20206715329 in words is "twenty billion, two hundred six million, seven hundred fifteen thousand, three hundred twenty-nine".