200736661 has 2 divisors, whose sum is σ = 200736662. Its totient is φ = 200736660.

The previous prime is 200736659. The next prime is 200736707. The reversal of 200736661 is 166637002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105966436 + 94770225 = 10294^2 + 9735^2 .

It is a cyclic number.

It is not a de Polignac number, because 200736661 - 2¹ = 200736659 is a prime.

Together with 200736659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200736761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100368330 + 100368331.

It is an arithmetic number, because the mean of its divisors is an integer number (100368331).

Almost surely, 2^200736661 is an apocalyptic number.

It is an amenable number.

200736661 is a deficient number, since it is larger than the sum of its proper divisors (1).

200736661 is an equidigital number, since it uses as much as digits as its factorization.

200736661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 200736661 is about 14168.1565843973. The cubic root of 200736661 is about 585.5206711774.

The spelling of 200736661 in words is "two hundred million, seven hundred thirty-six thousand, six hundred sixty-one".