33663121232 has 20 divisors (see below), whose sum is σ = 70239397620. Its totient is φ = 15536825088.

The previous prime is 33663121201. The next prime is 33663121291. The reversal of 33663121232 is 23212136633.

It can be written as a sum of positive squares in 2 ways, for example, as 15029779216 + 18633342016 = 122596^2 + 136504^2 .

It is a super-2 number, since 2×33663121232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80920757 + ... + 80921172.

It is an arithmetic number, because the mean of its divisors is an integer number (3511969881).

Almost surely, 2^33663121232 is an apocalyptic number.

It is an amenable number.

33663121232 is an abundant number, since it is smaller than the sum of its proper divisors (36576276388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33663121232 is a wasteful number, since it uses less digits than its factorization.

33663121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161841950 (or 161841944 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

Adding to 33663121232 its reverse (23212136633), we get a palindrome (56875257865).

The spelling of 33663121232 in words is "thirty-three billion, six hundred sixty-three million, one hundred twenty-one thousand, two hundred thirty-two".