3305566381 has 8 divisors (see below), whose sum is σ = 3627008280. Its totient is φ = 2993719872.

The previous prime is 3305566379. The next prime is 3305566399. The reversal of 3305566381 is 1836655033.

It can be written as a sum of positive squares in 4 ways, for example, as 318943881 + 2986622500 = 17859^2 + 54650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3305566381 - 2¹ = 3305566379 is a prime.

It is a super-2 number, since 2×3305566381² = 21853538198394874322, 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 (3305566181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398126 + ... + 2399503.

It is an arithmetic number, because the mean of its divisors is an integer number (453376035).

Almost surely, 2^3305566381 is an apocalyptic number.

It is an amenable number.

3305566381 is a deficient number, since it is larger than the sum of its proper divisors (321441899).

3305566381 is a wasteful number, since it uses less digits than its factorization.

3305566381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797695.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 3305566381 is about 57494.0551796444. The cubic root of 3305566381 is about 1489.6421795906.

The spelling of 3305566381 in words is "three billion, three hundred five million, five hundred sixty-six thousand, three hundred eighty-one".