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64055664135977 is a prime number
BaseRepresentation
bin11101001000010000111110…
…00110110100111100101001
322101210122212100222022101012
432210020133012310330221
531343442000004322402
6344122433232033305
716330604033332343
oct1644103706647451
9271718770868335
1064055664135977
1119456944527a38
127226500392835
132998566a38797
1411b644c748293
1576137c7e5452
hex3a421f1b4f29

64055664135977 has 2 divisors, whose sum is σ = 64055664135978. Its totient is φ = 64055664135976.

The previous prime is 64055664135901. The next prime is 64055664135979. The reversal of 64055664135977 is 77953146655046.

It is a happy number.

64055664135977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46143503995801 + 17912160140176 = 6792901^2 + 4232276^2 .

It is a cyclic number.

It is not a de Polignac number, because 64055664135977 - 210 = 64055664134953 is a prime.

Together with 64055664135979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64055664135979) 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, 32027832067988 + 32027832067989.

It is an arithmetic number, because the mean of its divisors is an integer number (32027832067989).

Almost surely, 264055664135977 is an apocalyptic number.

It is an amenable number.

64055664135977 is a deficient number, since it is larger than the sum of its proper divisors (1).

64055664135977 is an equidigital number, since it uses as much as digits as its factorization.

64055664135977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536000, while the sum is 68.

The spelling of 64055664135977 in words is "sixty-four trillion, fifty-five billion, six hundred sixty-four million, one hundred thirty-five thousand, nine hundred seventy-seven".