20385683207611 has 2 divisors, whose sum is σ = 20385683207612. Its totient is φ = 20385683207610.

The previous prime is 20385683207579. The next prime is 20385683207621. The reversal of 20385683207611 is 11670238658302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20385683207611 - 2⁵ = 20385683207579 is a prime.

It is not a weakly prime, because it can be changed into another prime (20385683207621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10192841603805 + 10192841603806.

It is an arithmetic number, because the mean of its divisors is an integer number (10192841603806).

Almost surely, 2^{20385683207611} is an apocalyptic number.

20385683207611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20385683207611 is an equidigital number, since it uses as much as digits as its factorization.

20385683207611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 20385683207611 in words is "twenty trillion, three hundred eighty-five billion, six hundred eighty-three million, two hundred seven thousand, six hundred eleven".