2203566649 has 2 divisors, whose sum is σ = 2203566650. Its totient is φ = 2203566648.

The previous prime is 2203566641. The next prime is 2203566697. The reversal of 2203566649 is 9466653022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1777887225 + 425679424 = 42165^2 + 20632^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203566649 - 2³ = 2203566641 is a prime.

It is not a weakly prime, because it can be changed into another prime (2203566641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101783324 + 1101783325.

It is an arithmetic number, because the mean of its divisors is an integer number (1101783325).

Almost surely, 2^2203566649 is an apocalyptic number.

It is an amenable number.

2203566649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203566649 is an equidigital number, since it uses as much as digits as its factorization.

2203566649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 2203566649 is about 46942.1628070118. The cubic root of 2203566649 is about 1301.2939087681.

The spelling of 2203566649 in words is "two billion, two hundred three million, five hundred sixty-six thousand, six hundred forty-nine".