82663105656533 has 2 divisors, whose sum is σ = 82663105656534. Its totient is φ = 82663105656532.

The previous prime is 82663105656503. The next prime is 82663105656613. The reversal of 82663105656533 is 33565650136628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72620785499089 + 10042320157444 = 8521783^2 + 3168962^2 .

It is a cyclic number.

It is not a de Polignac number, because 82663105656533 - 2¹⁴ = 82663105640149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82663105656503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41331552828266 + 41331552828267.

It is an arithmetic number, because the mean of its divisors is an integer number (41331552828267).

Almost surely, 2^{82663105656533} is an apocalyptic number.

It is an amenable number.

82663105656533 is a deficient number, since it is larger than the sum of its proper divisors (1).

82663105656533 is an equidigital number, since it uses as much as digits as its factorization.

82663105656533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984000, while the sum is 59.

The spelling of 82663105656533 in words is "eighty-two trillion, six hundred sixty-three billion, one hundred five million, six hundred fifty-six thousand, five hundred thirty-three".