4155520044 has 96 divisors (see below), whose sum is σ = 10579233280. Its totient is φ = 1269463104.

The previous prime is 4155520013. The next prime is 4155520049. The reversal of 4155520044 is 4400255514.

4155520044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4155519993 and 4155520020.

It is not an unprimeable number, because it can be changed into a prime (4155520049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4296849 + ... + 4297815.

Almost surely, 2^4155520044 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 4155520044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5289616640).

4155520044 is an abundant number, since it is smaller than the sum of its proper divisors (6423713236).

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

4155520044 is a wasteful number, since it uses less digits than its factorization.

4155520044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 4155520044 is about 64463.3232466338. The cubic root of 4155520044 is about 1607.7127667567.

Adding to 4155520044 its reverse (4400255514), we get a palindrome (8555775558).

The spelling of 4155520044 in words is "four billion, one hundred fifty-five million, five hundred twenty thousand, forty-four".