200160661 has 4 divisors (see below), whose sum is σ = 200636524. Its totient is φ = 199684800.

The previous prime is 200160643. The next prime is 200160673. The reversal of 200160661 is 166061002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72335025 + 127825636 = 8505^2 + 11306^2 .

It is a cyclic number.

It is not a de Polignac number, because 200160661 - 2¹¹ = 200158613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200160161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237300 + ... + 238141.

It is an arithmetic number, because the mean of its divisors is an integer number (50159131).

Almost surely, 2^200160661 is an apocalyptic number.

It is an amenable number.

200160661 is a deficient number, since it is larger than the sum of its proper divisors (475863).

200160661 is an equidigital number, since it uses as much as digits as its factorization.

200160661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475862.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 200160661 is about 14147.8147075794. The cubic root of 200160661 is about 584.9600976022.

The spelling of 200160661 in words is "two hundred million, one hundred sixty thousand, six hundred sixty-one".