20206191683 has 2 divisors, whose sum is σ = 20206191684. Its totient is φ = 20206191682.

The previous prime is 20206191673. The next prime is 20206191751. The reversal of 20206191683 is 38619160202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20206191683 - 2¹⁶ = 20206126147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20206191673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103095841 + 10103095842.

It is an arithmetic number, because the mean of its divisors is an integer number (10103095842).

Almost surely, 2^20206191683 is an apocalyptic number.

20206191683 is a deficient number, since it is larger than the sum of its proper divisors (1).

20206191683 is an equidigital number, since it uses as much as digits as its factorization.

20206191683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 20206191683 in words is "twenty billion, two hundred six million, one hundred ninety-one thousand, six hundred eighty-three".