4145051220 has 72 divisors (see below), whose sum is σ = 11882648736. Its totient is φ = 1079612352.

The previous prime is 4145051203. The next prime is 4145051221. The reversal of 4145051220 is 221505414.

4145051220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145051221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92259 + ... + 129621.

It is an arithmetic number, because the mean of its divisors is an integer number (165036788).

Almost surely, 2^4145051220 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 4145051220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5941324368).

4145051220 is an abundant number, since it is smaller than the sum of its proper divisors (7737597516).

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

4145051220 is a wasteful number, since it uses less digits than its factorization.

4145051220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37461 (or 37416 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 4145051220 is about 64382.0721940510. The cubic root of 4145051220 is about 1606.3615507523.

Adding to 4145051220 its reverse (221505414), we get a palindrome (4366556634).

The spelling of 4145051220 in words is "four billion, one hundred forty-five million, fifty-one thousand, two hundred twenty".