66411353 has 2 divisors, whose sum is σ = 66411354. Its totient is φ = 66411352.

The previous prime is 66411277. The next prime is 66411377. The reversal of 66411353 is 35311466.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51380224 + 15031129 = 7168^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 66411353 - 2¹⁰ = 66410329 is a prime.

It is a super-3 number, since 3×66411353³ (a number of 24 digits) contains 333 as substring.

It is equal to p_3919124 and since 66411353 and 3919124 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (66411383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33205676 + 33205677.

It is an arithmetic number, because the mean of its divisors is an integer number (33205677).

Almost surely, 2^66411353 is an apocalyptic number.

It is an amenable number.

66411353 is a deficient number, since it is larger than the sum of its proper divisors (1).

66411353 is an equidigital number, since it uses as much as digits as its factorization.

66411353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 66411353 is about 8149.3161062754. The cubic root of 66411353 is about 404.9618477499.

The spelling of 66411353 in words is "sixty-six million, four hundred eleven thousand, three hundred fifty-three".