20331330432224 has 24 divisors (see below), whose sum is σ = 45745493473008. Its totient is φ = 8713427328000.

The previous prime is 20331330432181. The next prime is 20331330432251. The reversal of 20331330432224 is 42223403313302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45382433777 + ... + 45382434224.

It is an arithmetic number, because the mean of its divisors is an integer number (1906062228042).

Almost surely, 2^{20331330432224} is an apocalyptic number.

It is an amenable number.

20331330432224 is an abundant number, since it is smaller than the sum of its proper divisors (25414163040784).

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

20331330432224 is an equidigital number, since it uses as much as digits as its factorization.

20331330432224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90764868018 (or 90764868010 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 20331330432224 its reverse (42223403313302), we get a palindrome (62554733745526).

The spelling of 20331330432224 in words is "twenty trillion, three hundred thirty-one billion, three hundred thirty million, four hundred thirty-two thousand, two hundred twenty-four".