4155520155 has 32 divisors (see below), whose sum is σ = 6770649600. Its totient is φ = 2175773952.

The previous prime is 4155520121. The next prime is 4155520169. The reversal of 4155520155 is 5510255514.

It is not a de Polignac number, because 4155520155 - 2⁶ = 4155520091 is a prime.

It is a super-2 number, since 2×4155520155² = 34536695517222448050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 755706 + ... + 761184.

It is an arithmetic number, because the mean of its divisors is an integer number (211582800).

Almost surely, 2^4155520155 is an apocalyptic number.

4155520155 is a deficient number, since it is larger than the sum of its proper divisors (2615129445).

4155520155 is a wasteful number, since it uses less digits than its factorization.

4155520155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 4155520155 is about 64463.3241075885. The cubic root of 4155520155 is about 1607.7127810715.

Adding to 4155520155 its reverse (5510255514), we get a palindrome (9665775669).

The spelling of 4155520155 in words is "four billion, one hundred fifty-five million, five hundred twenty thousand, one hundred fifty-five".