20633664541471 has 2 divisors, whose sum is σ = 20633664541472. Its totient is φ = 20633664541470.

The previous prime is 20633664541429. The next prime is 20633664541549. The reversal of 20633664541471 is 17414546633602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20633664541471 - 2³³ = 20625074606879 is a prime.

It is a super-3 number, since 3×20633664541471³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20633664547471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10316832270735 + 10316832270736.

It is an arithmetic number, because the mean of its divisors is an integer number (10316832270736).

Almost surely, 2^{20633664541471} is an apocalyptic number.

20633664541471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20633664541471 is an equidigital number, since it uses as much as digits as its factorization.

20633664541471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 20633664541471 in words is "twenty trillion, six hundred thirty-three billion, six hundred sixty-four million, five hundred forty-one thousand, four hundred seventy-one".