201009941665633 has 2 divisors, whose sum is σ = 201009941665634. Its totient is φ = 201009941665632.

The previous prime is 201009941665613. The next prime is 201009941665717. The reversal of 201009941665633 is 336566149900102.

201009941665633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200532561546304 + 477380119329 = 14160952^2 + 690927^2 .

It is a cyclic number.

It is not a de Polignac number, because 201009941665633 - 2²⁹ = 201009404794721 is a prime.

It is not a weakly prime, because it can be changed into another prime (201009941665613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100504970832816 + 100504970832817.

It is an arithmetic number, because the mean of its divisors is an integer number (100504970832817).

Almost surely, 2^{201009941665633} is an apocalyptic number.

It is an amenable number.

201009941665633 is a deficient number, since it is larger than the sum of its proper divisors (1).

201009941665633 is an equidigital number, since it uses as much as digits as its factorization.

201009941665633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 201009941665633 in words is "two hundred one trillion, nine billion, nine hundred forty-one million, six hundred sixty-five thousand, six hundred thirty-three".