20552145793633 has 2 divisors, whose sum is σ = 20552145793634. Its totient is φ = 20552145793632.

The previous prime is 20552145793609. The next prime is 20552145793651. The reversal of 20552145793633 is 33639754125502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14610802918464 + 5941342875169 = 3822408^2 + 2437487^2 .

It is a cyclic number.

It is not a de Polignac number, because 20552145793633 - 2⁵ = 20552145793601 is a prime.

It is not a weakly prime, because it can be changed into another prime (20552145793693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276072896816 + 10276072896817.

It is an arithmetic number, because the mean of its divisors is an integer number (10276072896817).

Almost surely, 2^{20552145793633} is an apocalyptic number.

It is an amenable number.

20552145793633 is a deficient number, since it is larger than the sum of its proper divisors (1).

20552145793633 is an equidigital number, since it uses as much as digits as its factorization.

20552145793633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412000, while the sum is 55.

The spelling of 20552145793633 in words is "twenty trillion, five hundred fifty-two billion, one hundred forty-five million, seven hundred ninety-three thousand, six hundred thirty-three".