66524410093 has 2 divisors, whose sum is σ = 66524410094. Its totient is φ = 66524410092.

The previous prime is 66524410091. The next prime is 66524410123. The reversal of 66524410093 is 39001442566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62146999849 + 4377410244 = 249293^2 + 66162^2 .

It is a cyclic number.

It is not a de Polignac number, because 66524410093 - 2¹ = 66524410091 is a prime.

Together with 66524410091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66524410091) 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, 33262205046 + 33262205047.

It is an arithmetic number, because the mean of its divisors is an integer number (33262205047).

Almost surely, 2^66524410093 is an apocalyptic number.

It is an amenable number.

66524410093 is a deficient number, since it is larger than the sum of its proper divisors (1).

66524410093 is an equidigital number, since it uses as much as digits as its factorization.

66524410093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 66524410093 in words is "sixty-six billion, five hundred twenty-four million, four hundred ten thousand, ninety-three".