20164206203 has 2 divisors, whose sum is σ = 20164206204. Its totient is φ = 20164206202.

The previous prime is 20164206157. The next prime is 20164206287. The reversal of 20164206203 is 30260246102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20164206203 - 2⁸ = 20164205947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20164208203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10082103101 + 10082103102.

It is an arithmetic number, because the mean of its divisors is an integer number (10082103102).

Almost surely, 2^20164206203 is an apocalyptic number.

20164206203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20164206203 is an equidigital number, since it uses as much as digits as its factorization.

20164206203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 20164206203 in words is "twenty billion, one hundred sixty-four million, two hundred six thousand, two hundred three".