3323445661 has 4 divisors (see below), whose sum is σ = 3323675232. Its totient is φ = 3323216092.

The previous prime is 3323445641. The next prime is 3323445673. The reversal of 3323445661 is 1665443233.

3323445661 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3323445661 - 2¹⁵ = 3323412893 is a prime.

It is a super-2 number, since 2×3323445661² = 22090582123239453842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3323445661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3323445611) 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, 91495 + ... + 122548.

It is an arithmetic number, because the mean of its divisors is an integer number (830918808).

Almost surely, 2^3323445661 is an apocalyptic number.

It is an amenable number.

3323445661 is a deficient number, since it is larger than the sum of its proper divisors (229571).

3323445661 is a wasteful number, since it uses less digits than its factorization.

3323445661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229570.

The product of its digits is 155520, while the sum is 37.

The square root of 3323445661 is about 57649.3335694351. Note that the first 3 decimals coincide. The cubic root of 3323445661 is about 1492.3230972857.

Adding to 3323445661 its reverse (1665443233), we get a palindrome (4988888894).

The spelling of 3323445661 in words is "three billion, three hundred twenty-three million, four hundred forty-five thousand, six hundred sixty-one".