3361636021 has 2 divisors, whose sum is σ = 3361636022. Its totient is φ = 3361636020.

The previous prime is 3361635967. The next prime is 3361636027. The reversal of 3361636021 is 1206361633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2751002500 + 610633521 = 52450^2 + 24711^2 .

It is a cyclic number.

It is not a de Polignac number, because 3361636021 - 2²¹ = 3359538869 is a prime.

It is a super-2 number, since 2×3361636021² = 22601193475369424882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3361636027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680818010 + 1680818011.

It is an arithmetic number, because the mean of its divisors is an integer number (1680818011).

Almost surely, 2^3361636021 is an apocalyptic number.

It is an amenable number.

3361636021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3361636021 is an equidigital number, since it uses as much as digits as its factorization.

3361636021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 3361636021 is about 57979.6172891819. The cubic root of 3361636021 is about 1498.0175322947.

Adding to 3361636021 its reverse (1206361633), we get a palindrome (4567997654).

The spelling of 3361636021 in words is "three billion, three hundred sixty-one million, six hundred thirty-six thousand, twenty-one".