201664003 has 2 divisors, whose sum is σ = 201664004. Its totient is φ = 201664002.

The previous prime is 201663983. The next prime is 201664019. The reversal of 201664003 is 300466102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201664003 - 2⁵ = 201663971 is a prime.

It is not a weakly prime, because it can be changed into another prime (201665003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100832001 + 100832002.

It is an arithmetic number, because the mean of its divisors is an integer number (100832002).

Almost surely, 2^201664003 is an apocalyptic number.

201664003 is a deficient number, since it is larger than the sum of its proper divisors (1).

201664003 is an equidigital number, since it uses as much as digits as its factorization.

201664003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 201664003 is about 14200.8451509056. The cubic root of 201664003 is about 586.4209284535.

The spelling of 201664003 in words is "two hundred one million, six hundred sixty-four thousand, three".