20066450651347 has 2 divisors, whose sum is σ = 20066450651348. Its totient is φ = 20066450651346.

The previous prime is 20066450651297. The next prime is 20066450651353. The reversal of 20066450651347 is 74315605466002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20066450651347 - 2¹⁵ = 20066450618579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20066450651347.

It is not a weakly prime, because it can be changed into another prime (20066450651047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033225325673 + 10033225325674.

It is an arithmetic number, because the mean of its divisors is an integer number (10033225325674).

Almost surely, 2^{20066450651347} is an apocalyptic number.

20066450651347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066450651347 is an equidigital number, since it uses as much as digits as its factorization.

20066450651347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 20066450651347 in words is "twenty trillion, sixty-six billion, four hundred fifty million, six hundred fifty-one thousand, three hundred forty-seven".