20169762029 has 2 divisors, whose sum is σ = 20169762030. Its totient is φ = 20169762028.

The previous prime is 20169762001. The next prime is 20169762059. The reversal of 20169762029 is 92026796102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12373225225 + 7796536804 = 111235^2 + 88298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20169762029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20169762059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10084881014 + 10084881015.

It is an arithmetic number, because the mean of its divisors is an integer number (10084881015).

Almost surely, 2^20169762029 is an apocalyptic number.

It is an amenable number.

20169762029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20169762029 is an equidigital number, since it uses as much as digits as its factorization.

20169762029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 20169762029 in words is "twenty billion, one hundred sixty-nine million, seven hundred sixty-two thousand, twenty-nine".