4155441020120 has 256 divisors, whose sum is σ = 10738848153600. Its totient is φ = 1436006983680.

The previous prime is 4155441020117. The next prime is 4155441020179. The reversal of 4155441020120 is 210201445514.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99584621 + ... + 99626339.

It is an arithmetic number, because the mean of its divisors is an integer number (41948625600).

Almost surely, 2^{4155441020120} is an apocalyptic number.

4155441020120 is a gapful number since it is divisible by the number (40) 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 4155441020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5369424076800).

4155441020120 is an abundant number, since it is smaller than the sum of its proper divisors (6583407133480).

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

4155441020120 is a wasteful number, since it uses less digits than its factorization.

4155441020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41978 (or 41974 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 4155441020120 its reverse (210201445514), we get a palindrome (4365642465634).

The spelling of 4155441020120 in words is "four trillion, one hundred fifty-five billion, four hundred forty-one million, twenty thousand, one hundred twenty".