12000540550020 has 96 divisors (see below), whose sum is σ = 36656744140800. Its totient is φ = 2909178495360.

The previous prime is 12000540549989. The next prime is 12000540550043. The reversal of 12000540550020 is 2005504500021.

It is a happy 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 31 ways as a sum of consecutive naturals, for example, 78925389 + ... + 79077291.

It is an arithmetic number, because the mean of its divisors is an integer number (381841084800).

Almost surely, 2^{12000540550020} is an apocalyptic number.

12000540550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000540550020 is an abundant number, since it is smaller than the sum of its proper divisors (24656203590780).

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

12000540550020 is a wasteful number, since it uses less digits than its factorization.

12000540550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271625 (or 271623 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 12000540550020 in words is "twelve trillion, five hundred forty million, five hundred fifty thousand, twenty".