20514410451169 has 2 divisors, whose sum is σ = 20514410451170. Its totient is φ = 20514410451168.

The previous prime is 20514410451109. The next prime is 20514410451173. The reversal of 20514410451169 is 96115401441502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11433155877025 + 9081254574144 = 3381295^2 + 3013512^2 .

It is a cyclic number.

It is not a de Polignac number, because 20514410451169 - 2¹⁷ = 20514410320097 is a prime.

It is a super-2 number, since 2×20514410451169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20514410451109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257205225584 + 10257205225585.

It is an arithmetic number, because the mean of its divisors is an integer number (10257205225585).

Almost surely, 2^{20514410451169} is an apocalyptic number.

It is an amenable number.

20514410451169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514410451169 is an equidigital number, since it uses as much as digits as its factorization.

20514410451169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 20514410451169 in words is "twenty trillion, five hundred fourteen billion, four hundred ten million, four hundred fifty-one thousand, one hundred sixty-nine".