335166661 has 2 divisors, whose sum is σ = 335166662. Its totient is φ = 335166660.

The previous prime is 335166617. The next prime is 335166691. The reversal of 335166661 is 166661533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335073025 + 93636 = 18305^2 + 306^2 .

It is an emirp because it is prime and its reverse (166661533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 335166661 - 2⁹ = 335166149 is a prime.

It is a super-2 number, since 2×335166661² = 224673381291777842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 335166661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335166691) 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, 167583330 + 167583331.

It is an arithmetic number, because the mean of its divisors is an integer number (167583331).

Almost surely, 2^335166661 is an apocalyptic number.

It is an amenable number.

335166661 is a deficient number, since it is larger than the sum of its proper divisors (1).

335166661 is an equidigital number, since it uses as much as digits as its factorization.

335166661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 335166661 is about 18307.5574831816. The cubic root of 335166661 is about 694.6301094028.

The spelling of 335166661 in words is "three hundred thirty-five million, one hundred sixty-six thousand, six hundred sixty-one".