20414355504161 has 2 divisors, whose sum is σ = 20414355504162. Its totient is φ = 20414355504160.

The previous prime is 20414355504133. The next prime is 20414355504203. The reversal of 20414355504161 is 16140555341402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18756521574400 + 1657833929761 = 4330880^2 + 1287569^2 .

It is a cyclic number.

It is not a de Polignac number, because 20414355504161 - 2¹⁴ = 20414355487777 is a prime.

It is not a weakly prime, because it can be changed into another prime (20414355504061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207177752080 + 10207177752081.

It is an arithmetic number, because the mean of its divisors is an integer number (10207177752081).

Almost surely, 2^{20414355504161} is an apocalyptic number.

It is an amenable number.

20414355504161 is a deficient number, since it is larger than the sum of its proper divisors (1).

20414355504161 is an equidigital number, since it uses as much as digits as its factorization.

20414355504161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 20414355504161 in words is "twenty trillion, four hundred fourteen billion, three hundred fifty-five million, five hundred four thousand, one hundred sixty-one".