33664543441 has 3 divisors (see below), whose sum is σ = 33664726921. Its totient is φ = 33664359962.

The previous prime is 33664543391. The next prime is 33664543459. The reversal of 33664543441 is 14434546633.

The square root of 33664543441 is 183479.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 33664543441 - 2⁹ = 33664542929 is a prime.

It is a super-2 number, since 2×33664543441² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33664543481) 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 2 ways as a sum of consecutive naturals, for example, 91740 + ... + 275218.

Almost surely, 2^33664543441 is an apocalyptic number.

33664543441 is the 183479-th square number.

33664543441 is the 91740-th centered octagonal number.

It is an amenable number.

33664543441 is a deficient number, since it is larger than the sum of its proper divisors (183480).

33664543441 is an frugal number, since it uses more digits than its factorization.

33664543441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366958 (or 183479 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The spelling of 33664543441 in words is "thirty-three billion, six hundred sixty-four million, five hundred forty-three thousand, four hundred forty-one".