202541144520 has 128 divisors (see below), whose sum is σ = 713851367040. Its totient is φ = 45323888640.

The previous prime is 202541144467. The next prime is 202541144527. The reversal of 202541144520 is 25441145202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (202541144527) 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 31 ways as a sum of consecutive naturals, for example, 5884389 + ... + 5918708.

It is an arithmetic number, because the mean of its divisors is an integer number (5576963805).

Almost surely, 2^202541144520 is an apocalyptic number.

202541144520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202541144520 is an abundant number, since it is smaller than the sum of its proper divisors (511310222520).

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

202541144520 is a wasteful number, since it uses less digits than its factorization.

202541144520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803135 (or 11803131 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 202541144520 its reverse (25441145202), we get a palindrome (227982289722).

The spelling of 202541144520 in words is "two hundred two billion, five hundred forty-one million, one hundred forty-four thousand, five hundred twenty".