20733596896321 has 2 divisors, whose sum is σ = 20733596896322. Its totient is φ = 20733596896320.

The previous prime is 20733596896279. The next prime is 20733596896333. The reversal of 20733596896321 is 12369869533702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18744267186225 + 1989329710096 = 4329465^2 + 1410436^2 .

It is a cyclic number.

It is not a de Polignac number, because 20733596896321 - 2²⁹ = 20733060025409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20733596896721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10366798448160 + 10366798448161.

It is an arithmetic number, because the mean of its divisors is an integer number (10366798448161).

Almost surely, 2^{20733596896321} is an apocalyptic number.

It is an amenable number.

20733596896321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20733596896321 is an equidigital number, since it uses as much as digits as its factorization.

20733596896321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 20733596896321 in words is "twenty trillion, seven hundred thirty-three billion, five hundred ninety-six million, eight hundred ninety-six thousand, three hundred twenty-one".