33313000164721 has 2 divisors, whose sum is σ = 33313000164722. Its totient is φ = 33313000164720.

The previous prime is 33313000164611. The next prime is 33313000164751. The reversal of 33313000164721 is 12746100031333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20164689041121 + 13148311123600 = 4490511^2 + 3626060^2 .

It is a cyclic number.

It is not a de Polignac number, because 33313000164721 - 2²⁵ = 33312966610289 is a prime.

It is a super-2 number, since 2×33313000164721² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33313000164751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16656500082360 + 16656500082361.

It is an arithmetic number, because the mean of its divisors is an integer number (16656500082361).

Almost surely, 2^{33313000164721} is an apocalyptic number.

It is an amenable number.

33313000164721 is a deficient number, since it is larger than the sum of its proper divisors (1).

33313000164721 is an equidigital number, since it uses as much as digits as its factorization.

33313000164721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 33313000164721 in words is "thirty-three trillion, three hundred thirteen billion, one hundred sixty-four thousand, seven hundred twenty-one".