65139484544663 has 2 divisors, whose sum is σ = 65139484544664. Its totient is φ = 65139484544662.

The previous prime is 65139484544633. The next prime is 65139484544777. The reversal of 65139484544663 is 36644548493156.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65139484544663 - 2¹⁸ = 65139484282519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65139484544593 and 65139484544602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65139484544633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32569742272331 + 32569742272332.

It is an arithmetic number, because the mean of its divisors is an integer number (32569742272332).

Almost surely, 2^{65139484544663} is an apocalyptic number.

65139484544663 is a deficient number, since it is larger than the sum of its proper divisors (1).

65139484544663 is an equidigital number, since it uses as much as digits as its factorization.

65139484544663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 895795200, while the sum is 68.

The spelling of 65139484544663 in words is "sixty-five trillion, one hundred thirty-nine billion, four hundred eighty-four million, five hundred forty-four thousand, six hundred sixty-three".