66011093 has 2 divisors, whose sum is σ = 66011094. Its totient is φ = 66011092.

The previous prime is 66011069. The next prime is 66011123. The reversal of 66011093 is 39011066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65399569 + 611524 = 8087^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 66011093 - 2⁸ = 66010837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66011003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33005546 + 33005547.

It is an arithmetic number, because the mean of its divisors is an integer number (33005547).

Almost surely, 2^66011093 is an apocalyptic number.

It is an amenable number.

66011093 is a deficient number, since it is larger than the sum of its proper divisors (1).

66011093 is an equidigital number, since it uses as much as digits as its factorization.

66011093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 66011093 is about 8124.7211029056. The cubic root of 66011093 is about 404.1466419431.

The spelling of 66011093 in words is "sixty-six million, eleven thousand, ninety-three".