201543024520 has 32 divisors (see below), whose sum is σ = 454418553600. Its totient is φ = 80448899008.

The previous prime is 201543024509. The next prime is 201543024643. The reversal of 201543024520 is 25420345102.

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 7 ways as a sum of consecutive naturals, for example, 5240314 + ... + 5278633.

It is an arithmetic number, because the mean of its divisors is an integer number (14200579800).

Almost surely, 2^201543024520 is an apocalyptic number.

201543024520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201543024520 is an abundant number, since it is smaller than the sum of its proper divisors (252875529080).

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

201543024520 is a wasteful number, since it uses less digits than its factorization.

201543024520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10519437 (or 10519433 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 201543024520 its reverse (25420345102), we get a palindrome (226963369622).

The spelling of 201543024520 in words is "two hundred one billion, five hundred forty-three million, twenty-four thousand, five hundred twenty".