3366558961 has 4 divisors (see below), whose sum is σ = 3367254132. Its totient is φ = 3365863792.

The previous prime is 3366558959. The next prime is 3366558973. The reversal of 3366558961 is 1698556633.

3366558961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1698556633 = 3389 ⋅501197.

It can be written as a sum of positive squares in 2 ways, for example, as 1725903936 + 1640655025 = 41544^2 + 40505^2 .

It is a cyclic number.

It is not a de Polignac number, because 3366558961 - 2¹ = 3366558959 is a prime.

It is a super-2 number, since 2×3366558961² = 22667438475778799042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3366558899 and 3366558908.

It is not an unprimeable number, because it can be changed into a prime (3366558901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340270 + ... + 350023.

It is an arithmetic number, because the mean of its divisors is an integer number (841813533).

Almost surely, 2^3366558961 is an apocalyptic number.

It is an amenable number.

3366558961 is a deficient number, since it is larger than the sum of its proper divisors (695171).

3366558961 is an equidigital number, since it uses as much as digits as its factorization.

3366558961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695170.

The product of its digits is 3499200, while the sum is 52.

The square root of 3366558961 is about 58022.0558150088. The cubic root of 3366558961 is about 1498.7484317120.

The spelling of 3366558961 in words is "three billion, three hundred sixty-six million, five hundred fifty-eight thousand, nine hundred sixty-one".