66435041 has 2 divisors, whose sum is σ = 66435042. Its totient is φ = 66435040.

The previous prime is 66435007. The next prime is 66435049. The reversal of 66435041 is 14053466.

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., 57820816 + 8614225 = 7604^2 + 2935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66435041 is a prime.

It is a super-2 number, since 2×66435041² = 8827229345343362, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66434995 and 66435013.

It is not a weakly prime, because it can be changed into another prime (66435049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33217520 + 33217521.

It is an arithmetic number, because the mean of its divisors is an integer number (33217521).

Almost surely, 2^66435041 is an apocalyptic number.

It is an amenable number.

66435041 is a deficient number, since it is larger than the sum of its proper divisors (1).

66435041 is an equidigital number, since it uses as much as digits as its factorization.

66435041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66435041 is about 8150.7693501902. The cubic root of 66435041 is about 405.0099901006.

The spelling of 66435041 in words is "sixty-six million, four hundred thirty-five thousand, forty-one".