200164661 has 2 divisors, whose sum is σ = 200164662. Its totient is φ = 200164660.

The previous prime is 200164619. The next prime is 200164673. The reversal of 200164661 is 166461002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171112561 + 29052100 = 13081^2 + 5390^2 .

It is a cyclic number.

It is not a de Polignac number, because 200164661 - 2⁶ = 200164597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200164661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200104661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100082330 + 100082331.

It is an arithmetic number, because the mean of its divisors is an integer number (100082331).

Almost surely, 2^200164661 is an apocalyptic number.

It is an amenable number.

200164661 is a deficient number, since it is larger than the sum of its proper divisors (1).

200164661 is an equidigital number, since it uses as much as digits as its factorization.

200164661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 200164661 is about 14147.9560714613. The cubic root of 200164661 is about 584.9639941801.

The spelling of 200164661 in words is "two hundred million, one hundred sixty-four thousand, six hundred sixty-one".