120454544144 has 80 divisors (see below), whose sum is σ = 262527822144. Its totient is φ = 53071449600.

The previous prime is 120454544141. The next prime is 120454544153. The reversal of 120454544144 is 441445454021.

It is a junction number, because it is equal to n+sod(n) for n = 120454544098 and 120454544107.

It is not an unprimeable number, because it can be changed into a prime (120454544141) 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 15 ways as a sum of consecutive naturals, for example, 696434 + ... + 852014.

Almost surely, 2^120454544144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120454544144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131263911072).

120454544144 is an abundant number, since it is smaller than the sum of its proper divisors (142073278000).

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

120454544144 is a wasteful number, since it uses less digits than its factorization.

120454544144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155736 (or 155730 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 38.

Adding to 120454544144 its reverse (441445454021), we get a palindrome (561899998165).

The spelling of 120454544144 in words is "one hundred twenty billion, four hundred fifty-four million, five hundred forty-four thousand, one hundred forty-four".