3331445661 has 12 divisors (see below), whose sum is σ = 4822487488. Its totient is φ = 2216164104.

The previous prime is 3331445633. The next prime is 3331445669. The reversal of 3331445661 is 1665441333.

It is not a de Polignac number, because 3331445661 - 2⁵ = 3331445629 is a prime.

It is a super-2 number, since 2×3331445661² = 22197060384391453842, 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 (3331445669) 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 in 11 ways as a sum of consecutive naturals, for example, 395575 + ... + 403908.

Almost surely, 2^3331445661 is an apocalyptic number.

It is an amenable number.

3331445661 is a deficient number, since it is larger than the sum of its proper divisors (1491041827).

3331445661 is a wasteful number, since it uses less digits than its factorization.

3331445661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799952 (or 799949 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 3331445661 is about 57718.6768819245. The cubic root of 3331445661 is about 1493.5195481484.

Adding to 3331445661 its reverse (1665441333), we get a palindrome (4996886994).

The spelling of 3331445661 in words is "three billion, three hundred thirty-one million, four hundred forty-five thousand, six hundred sixty-one".