64702545582553 has 2 divisors, whose sum is σ = 64702545582554. Its totient is φ = 64702545582552.

The previous prime is 64702545582551. The next prime is 64702545582559. The reversal of 64702545582553 is 35528554520746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58139588004624 + 6562957577929 = 7624932^2 + 2561827^2 .

It is a cyclic number.

It is not a de Polignac number, because 64702545582553 - 2¹ = 64702545582551 is a prime.

Together with 64702545582551, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 64702545582491 and 64702545582500.

It is not a weakly prime, because it can be changed into another prime (64702545582551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32351272791276 + 32351272791277.

It is an arithmetic number, because the mean of its divisors is an integer number (32351272791277).

Almost surely, 2^{64702545582553} is an apocalyptic number.

It is an amenable number.

64702545582553 is a deficient number, since it is larger than the sum of its proper divisors (1).

64702545582553 is an equidigital number, since it uses as much as digits as its factorization.

64702545582553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600000, while the sum is 61.

The spelling of 64702545582553 in words is "sixty-four trillion, seven hundred two billion, five hundred forty-five million, five hundred eighty-two thousand, five hundred fifty-three".