2261966908633 has 2 divisors, whose sum is σ = 2261966908634. Its totient is φ = 2261966908632.

The previous prime is 2261966908573. The next prime is 2261966908703. The reversal of 2261966908633 is 3368096691622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1275923866624 + 986043042009 = 1129568^2 + 992997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261966908633 - 2¹⁷ = 2261966777561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2261966903633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130983454316 + 1130983454317.

It is an arithmetic number, because the mean of its divisors is an integer number (1130983454317).

Almost surely, 2^{2261966908633} is an apocalyptic number.

It is an amenable number.

2261966908633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261966908633 is an equidigital number, since it uses as much as digits as its factorization.

2261966908633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30233088, while the sum is 61.

The spelling of 2261966908633 in words is "two trillion, two hundred sixty-one billion, nine hundred sixty-six million, nine hundred eight thousand, six hundred thirty-three".