33366700336721 has 2 divisors, whose sum is σ = 33366700336722. Its totient is φ = 33366700336720.

The previous prime is 33366700336703. The next prime is 33366700336763. The reversal of 33366700336721 is 12763300766333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29767237636096 + 3599462700625 = 5455936^2 + 1897225^2 .

It is a cyclic number.

It is not a de Polignac number, because 33366700336721 - 2⁶ = 33366700336657 is a prime.

It is a super-2 number, since 2×33366700336721² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33366700336721.

It is not a weakly prime, because it can be changed into another prime (33366700366721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16683350168360 + 16683350168361.

It is an arithmetic number, because the mean of its divisors is an integer number (16683350168361).

Almost surely, 2^{33366700336721} is an apocalyptic number.

It is an amenable number.

33366700336721 is a deficient number, since it is larger than the sum of its proper divisors (1).

33366700336721 is an equidigital number, since it uses as much as digits as its factorization.

33366700336721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 50.

The spelling of 33366700336721 in words is "thirty-three trillion, three hundred sixty-six billion, seven hundred million, three hundred thirty-six thousand, seven hundred twenty-one".