201530545143500 has 48 divisors (see below), whose sum is σ = 442946167521312. Its totient is φ = 80098764408000.

The previous prime is 201530545143493. The next prime is 201530545143511. The reversal of 201530545143500 is 5341545035102.

It is a super-2 number, since 2×201530545143500² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283555546 + ... + 1283712545.

It is an arithmetic number, because the mean of its divisors is an integer number (9228045156694).

Almost surely, 2^{201530545143500} is an apocalyptic number.

201530545143500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201530545143500 is an abundant number, since it is smaller than the sum of its proper divisors (241415622377812).

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

201530545143500 is a wasteful number, since it uses less digits than its factorization.

201530545143500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567268267 (or 2567268255 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 201530545143500 in words is "two hundred one trillion, five hundred thirty billion, five hundred forty-five million, one hundred forty-three thousand, five hundred".