33668899911 has 20 divisors (see below), whose sum is σ = 50984505792. Its totient is φ = 22138450848.

The previous prime is 33668899909. The next prime is 33668899967. The reversal of 33668899911 is 11999886633.

It is not a de Polignac number, because 33668899911 - 2¹ = 33668899909 is a prime.

It is a super-2 number, since 2×33668899911² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33668899981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2841111 + ... + 2852936.

Almost surely, 2^33668899911 is an apocalyptic number.

33668899911 is a deficient number, since it is larger than the sum of its proper divisors (17315605881).

33668899911 is an equidigital number, since it uses as much as digits as its factorization.

33668899911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694132 (or 5694123 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The spelling of 33668899911 in words is "thirty-three billion, six hundred sixty-eight million, eight hundred ninety-nine thousand, nine hundred eleven".