4421898165 has 32 divisors (see below), whose sum is σ = 7128498816. Its totient is φ = 2340576000.

The previous prime is 4421898137. The next prime is 4421898167. The reversal of 4421898165 is 5618981244.

It is not a de Polignac number, because 4421898165 - 2¹⁰ = 4421897141 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421898167) 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 31 ways as a sum of consecutive naturals, for example, 1963290 + ... + 1965540.

It is an arithmetic number, because the mean of its divisors is an integer number (222765588).

Almost surely, 2^4421898165 is an apocalyptic number.

It is an amenable number.

4421898165 is a deficient number, since it is larger than the sum of its proper divisors (2706600651).

4421898165 is a wasteful number, since it uses less digits than its factorization.

4421898165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189.

The product of its digits is 552960, while the sum is 48.

The square root of 4421898165 is about 66497.3545714414. The cubic root of 4421898165 is about 1641.3564730332.

The spelling of 4421898165 in words is "four billion, four hundred twenty-one million, eight hundred ninety-eight thousand, one hundred sixty-five".