64645086710651 has 2 divisors, whose sum is σ = 64645086710652. Its totient is φ = 64645086710650.

The previous prime is 64645086710627. The next prime is 64645086710671. The reversal of 64645086710651 is 15601768054646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64645086710651 - 2¹⁰ = 64645086709627 is a prime.

It is not a weakly prime, because it can be changed into another prime (64645086710671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32322543355325 + 32322543355326.

It is an arithmetic number, because the mean of its divisors is an integer number (32322543355326).

Almost surely, 2^{64645086710651} is an apocalyptic number.

64645086710651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64645086710651 is an equidigital number, since it uses as much as digits as its factorization.

64645086710651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 64645086710651 in words is "sixty-four trillion, six hundred forty-five billion, eighty-six million, seven hundred ten thousand, six hundred fifty-one".