202020330144 has 48 divisors (see below), whose sum is σ = 561497686848. Its totient is φ = 63378926592.

The previous prime is 202020330143. The next prime is 202020330157. The reversal of 202020330144 is 441033020202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 202020330144.

It is not an unprimeable number, because it can be changed into a prime (202020330143) 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 7 ways as a sum of consecutive naturals, for example, 61891852 + ... + 61895115.

It is an arithmetic number, because the mean of its divisors is an integer number (11697868476).

Almost surely, 2^202020330144 is an apocalyptic number.

202020330144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

202020330144 is an abundant number, since it is smaller than the sum of its proper divisors (359477356704).

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

202020330144 is a wasteful number, since it uses less digits than its factorization.

202020330144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123786997 (or 123786989 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 202020330144 its reverse (441033020202), we get a palindrome (643053350346).

The spelling of 202020330144 in words is "two hundred two billion, twenty million, three hundred thirty thousand, one hundred forty-four".