4155507220 has 24 divisors (see below), whose sum is σ = 9008068608. Its totient is φ = 1608583200.

The previous prime is 4155507197. The next prime is 4155507227. The reversal of 4155507220 is 227055514.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155507227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350596 + ... + 3351835.

It is an arithmetic number, because the mean of its divisors is an integer number (375336192).

Almost surely, 2^4155507220 is an apocalyptic number.

It is an amenable number.

4155507220 is an abundant number, since it is smaller than the sum of its proper divisors (4852561388).

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

4155507220 is a wasteful number, since it uses less digits than its factorization.

4155507220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702471 (or 6702469 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 4155507220 is about 64463.2237791440. The cubic root of 4155507220 is about 1607.7111129461.

The spelling of 4155507220 in words is "four billion, one hundred fifty-five million, five hundred seven thousand, two hundred twenty".