120541545540 has 144 divisors (see below), whose sum is σ = 393879665088. Its totient is φ = 29663430912.

The previous prime is 120541545539. The next prime is 120541545611. The reversal of 120541545540 is 45545145021.

120541545540 is a `hidden beast` number, since 1 + 2 + 0 + 54 + 1 + 54 + 554 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 120541545495 and 120541545504.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14791747 + ... + 14799893.

It is an arithmetic number, because the mean of its divisors is an integer number (2735275452).

Almost surely, 2^120541545540 is an apocalyptic number.

120541545540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120541545540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196939832544).

120541545540 is an abundant number, since it is smaller than the sum of its proper divisors (273338119548).

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

120541545540 is a wasteful number, since it uses less digits than its factorization.

120541545540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14498 (or 14493 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 120541545540 in words is "one hundred twenty billion, five hundred forty-one million, five hundred forty-five thousand, five hundred forty".