20036205377 has 2 divisors, whose sum is σ = 20036205378. Its totient is φ = 20036205376.

The previous prime is 20036205361. The next prime is 20036205379. The reversal of 20036205377 is 77350263002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14933817616 + 5102387761 = 122204^2 + 71431^2 .

It is a cyclic number.

It is not a de Polignac number, because 20036205377 - 2⁴ = 20036205361 is a prime.

Together with 20036205379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20036205379) 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, 10018102688 + 10018102689.

It is an arithmetic number, because the mean of its divisors is an integer number (10018102689).

Almost surely, 2^20036205377 is an apocalyptic number.

It is an amenable number.

20036205377 is a deficient number, since it is larger than the sum of its proper divisors (1).

20036205377 is an equidigital number, since it uses as much as digits as its factorization.

20036205377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 35.

Adding to 20036205377 its reverse (77350263002), we get a palindrome (97386468379).

The spelling of 20036205377 in words is "twenty billion, thirty-six million, two hundred five thousand, three hundred seventy-seven".