20104716481 has 2 divisors, whose sum is σ = 20104716482. Its totient is φ = 20104716480.

The previous prime is 20104716451. The next prime is 20104716493. The reversal of 20104716481 is 18461740102.

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., 18387360000 + 1717356481 = 135600^2 + 41441^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104716481 - 2¹⁵ = 20104683713 is a prime.

It is a super-2 number, since 2×20104716481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20104716421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052358240 + 10052358241.

It is an arithmetic number, because the mean of its divisors is an integer number (10052358241).

Almost surely, 2^20104716481 is an apocalyptic number.

It is an amenable number.

20104716481 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104716481 is an equidigital number, since it uses as much as digits as its factorization.

20104716481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 20104716481 in words is "twenty billion, one hundred four million, seven hundred sixteen thousand, four hundred eighty-one".