33034266721 has 2 divisors, whose sum is σ = 33034266722. Its totient is φ = 33034266720.

The previous prime is 33034266709. The next prime is 33034266739. The reversal of 33034266721 is 12766243033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22272279121 + 10761987600 = 149239^2 + 103740^2 .

It is a cyclic number.

It is not a de Polignac number, because 33034266721 - 2¹¹ = 33034264673 is a prime.

It is not a weakly prime, because it can be changed into another prime (33034236721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16517133360 + 16517133361.

It is an arithmetic number, because the mean of its divisors is an integer number (16517133361).

Almost surely, 2^33034266721 is an apocalyptic number.

It is an amenable number.

33034266721 is a deficient number, since it is larger than the sum of its proper divisors (1).

33034266721 is an equidigital number, since it uses as much as digits as its factorization.

33034266721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 33034266721 in words is "thirty-three billion, thirty-four million, two hundred sixty-six thousand, seven hundred twenty-one".