3365630621 has 2 divisors, whose sum is σ = 3365630622. Its totient is φ = 3365630620.

The previous prime is 3365630581. The next prime is 3365630629. The reversal of 3365630621 is 1260365633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2087210596 + 1278420025 = 45686^2 + 35755^2 .

It is an emirp because it is prime and its reverse (1260365633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3365630621 - 2⁶ = 3365630557 is a prime.

It is a super-2 number, since 2×3365630621² = 22654938954025691282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3365630629) 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, 1682815310 + 1682815311.

It is an arithmetic number, because the mean of its divisors is an integer number (1682815311).

Almost surely, 2^3365630621 is an apocalyptic number.

It is an amenable number.

3365630621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3365630621 is an equidigital number, since it uses as much as digits as its factorization.

3365630621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 3365630621 is about 58014.0553745383. The cubic root of 3365630621 is about 1498.6106574006.

The spelling of 3365630621 in words is "three billion, three hundred sixty-five million, six hundred thirty thousand, six hundred twenty-one".