3561366213 has 24 divisors (see below), whose sum is σ = 5467542080. Its totient is φ = 2227435200.

The previous prime is 3561366209. The next prime is 3561366223. The reversal of 3561366213 is 3126631653.

3561366213 is a `hidden beast` number, since 3 + 561 + 36 + 62 + 1 + 3 = 666.

It is not a de Polignac number, because 3561366213 - 2² = 3561366209 is a prime.

It is a super-2 number, since 2×3561366213² = 25366658606195922738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561366223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83488 + ... + 118713.

Almost surely, 2^3561366213 is an apocalyptic number.

It is an amenable number.

3561366213 is a deficient number, since it is larger than the sum of its proper divisors (1906175867).

3561366213 is a wasteful number, since it uses less digits than its factorization.

3561366213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202329 (or 202326 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3561366213 is about 59677.1833534392. The cubic root of 3561366213 is about 1527.1166470127.

Adding to 3561366213 its reverse (3126631653), we get a palindrome (6687997866).

The spelling of 3561366213 in words is "three billion, five hundred sixty-one million, three hundred sixty-six thousand, two hundred thirteen".