5165221044 has 48 divisors (see below), whose sum is σ = 13315978368. Its totient is φ = 1550005248.

The previous prime is 5165220971. The next prime is 5165221049. The reversal of 5165221044 is 4401225615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165221049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545737 + ... + 555120.

It is an arithmetic number, because the mean of its divisors is an integer number (277416216).

Almost surely, 2^5165221044 is an apocalyptic number.

It is an amenable number.

5165221044 is an abundant number, since it is smaller than the sum of its proper divisors (8150757324).

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

5165221044 is a wasteful number, since it uses less digits than its factorization.

5165221044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100904 (or 1100902 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 5165221044 is about 71869.4722674377. The cubic root of 5165221044 is about 1728.6071455641.

Adding to 5165221044 its reverse (4401225615), we get a palindrome (9566446659).

The spelling of 5165221044 in words is "five billion, one hundred sixty-five million, two hundred twenty-one thousand, forty-four".