20035370354369 has 2 divisors, whose sum is σ = 20035370354370. Its totient is φ = 20035370354368.

The previous prime is 20035370354353. The next prime is 20035370354371. The reversal of 20035370354369 is 96345307353002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16888294354369 + 3147076000000 = 4109537^2 + 1774000^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035370354369 - 2⁴ = 20035370354353 is a prime.

It is a super-2 number, since 2×20035370354369² (a number of 27 digits) contains 22 as substring.

Together with 20035370354371, 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 (20035370354339) 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, 10017685177184 + 10017685177185.

It is an arithmetic number, because the mean of its divisors is an integer number (10017685177185).

Almost surely, 2^{20035370354369} is an apocalyptic number.

It is an amenable number.

20035370354369 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035370354369 is an equidigital number, since it uses as much as digits as its factorization.

20035370354369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 50.

The spelling of 20035370354369 in words is "twenty trillion, thirty-five billion, three hundred seventy million, three hundred fifty-four thousand, three hundred sixty-nine".