66105527 has 2 divisors, whose sum is σ = 66105528. Its totient is φ = 66105526.

The previous prime is 66105511. The next prime is 66105539. The reversal of 66105527 is 72550166.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66105527 - 2⁴ = 66105511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66105493 and 66105502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66105827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33052763 + 33052764.

It is an arithmetic number, because the mean of its divisors is an integer number (33052764).

Almost surely, 2^66105527 is an apocalyptic number.

66105527 is a deficient number, since it is larger than the sum of its proper divisors (1).

66105527 is an equidigital number, since it uses as much as digits as its factorization.

66105527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 66105527 is about 8130.5305484944. The cubic root of 66105527 is about 404.3392711780.

The spelling of 66105527 in words is "sixty-six million, one hundred five thousand, five hundred twenty-seven".