4155520020 has 48 divisors (see below), whose sum is σ = 12247851840. Its totient is φ = 1049815296.

The previous prime is 4155520013. The next prime is 4155520049. The reversal of 4155520020 is 200255514.

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 15 ways as a sum of consecutive naturals, for example, 1821457 + ... + 1823736.

It is an arithmetic number, because the mean of its divisors is an integer number (255163580).

Almost surely, 2^4155520020 is an apocalyptic number.

It is an amenable number.

4155520020 is an abundant number, since it is smaller than the sum of its proper divisors (8092331820).

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

4155520020 is a wasteful number, since it uses less digits than its factorization.

4155520020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645224 (or 3645222 counting only the distinct ones).

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

The square root of 4155520020 is about 64463.3230604815. The cubic root of 4155520020 is about 1607.7127636616.

Adding to 4155520020 its reverse (200255514), we get a palindrome (4355775534).

The spelling of 4155520020 in words is "four billion, one hundred fifty-five million, five hundred twenty thousand, twenty".