20000675011609 has 2 divisors, whose sum is σ = 20000675011610. Its totient is φ = 20000675011608.

The previous prime is 20000675011579. The next prime is 20000675011637. The reversal of 20000675011609 is 90611057600002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12421197994384 + 7579477017225 = 3524372^2 + 2753085^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000675011609 - 2³⁵ = 19966315273241 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000675015609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000337505804 + 10000337505805.

It is an arithmetic number, because the mean of its divisors is an integer number (10000337505805).

Almost surely, 2^{20000675011609} is an apocalyptic number.

It is an amenable number.

20000675011609 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000675011609 is an equidigital number, since it uses as much as digits as its factorization.

20000675011609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 20000675011609 in words is "twenty trillion, six hundred seventy-five million, eleven thousand, six hundred nine".