20380576552417 has 2 divisors, whose sum is σ = 20380576552418. Its totient is φ = 20380576552416.

The previous prime is 20380576552397. The next prime is 20380576552421. The reversal of 20380576552417 is 71425567508302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13996308074896 + 6384268477521 = 3741164^2 + 2526711^2 .

It is a cyclic number.

It is not a de Polignac number, because 20380576552417 - 2¹⁵ = 20380576519649 is a prime.

It is not a weakly prime, because it can be changed into another prime (20380576552477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10190288276208 + 10190288276209.

It is an arithmetic number, because the mean of its divisors is an integer number (10190288276209).

Almost surely, 2^{20380576552417} is an apocalyptic number.

It is an amenable number.

20380576552417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20380576552417 is an equidigital number, since it uses as much as digits as its factorization.

20380576552417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112000, while the sum is 55.

The spelling of 20380576552417 in words is "twenty trillion, three hundred eighty billion, five hundred seventy-six million, five hundred fifty-two thousand, four hundred seventeen".