3221366445 has 48 divisors (see below), whose sum is σ = 6103491264. Its totient is φ = 1558752000.

The previous prime is 3221366413. The next prime is 3221366461. The reversal of 3221366445 is 5446631223.

3221366445 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 3 + 6 + 644 + 5 = 666.

It is not a de Polignac number, because 3221366445 - 2⁵ = 3221366413 is a prime.

It is a super-3 number, since 3×3221366445³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 251650 + ... + 264140.

It is an arithmetic number, because the mean of its divisors is an integer number (127156068).

Almost surely, 2^3221366445 is an apocalyptic number.

It is an amenable number.

3221366445 is a deficient number, since it is larger than the sum of its proper divisors (2882124819).

3221366445 is a wasteful number, since it uses less digits than its factorization.

3221366445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13034 (or 13031 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 3221366445 is about 56757.0827738706. The cubic root of 3221366445 is about 1476.8851040574.

Adding to 3221366445 its reverse (5446631223), we get a palindrome (8667997668).

The spelling of 3221366445 in words is "three billion, two hundred twenty-one million, three hundred sixty-six thousand, four hundred forty-five".