20104151454349 has 2 divisors, whose sum is σ = 20104151454350. Its totient is φ = 20104151454348.

The previous prime is 20104151454319. The next prime is 20104151454487. The reversal of 20104151454349 is 94345415140102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15778229841124 + 4325921613225 = 3972182^2 + 2079885^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104151454349 - 2³⁷ = 19966712500877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20104151454319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052075727174 + 10052075727175.

It is an arithmetic number, because the mean of its divisors is an integer number (10052075727175).

Almost surely, 2^{20104151454349} is an apocalyptic number.

It is an amenable number.

20104151454349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104151454349 is an equidigital number, since it uses as much as digits as its factorization.

20104151454349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 20104151454349 in words is "twenty trillion, one hundred four billion, one hundred fifty-one million, four hundred fifty-four thousand, three hundred forty-nine".