4661320445 has 18 divisors (see below), whose sum is σ = 5907154302. Its totient is φ = 3530591856.

The previous prime is 4661320441. The next prime is 4661320453. The reversal of 4661320445 is 5440231664.

It can be written as a sum of positive squares in only one way, i.e., 3729056356 + 932264089 = 61066^2 + 30533^2 .

It is not a de Polignac number, because 4661320445 - 2² = 4661320441 is a prime.

It is a super-3 number, since 3×4661320445³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661320441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2899832 + ... + 2901438.

It is an arithmetic number, because the mean of its divisors is an integer number (328175239).

Almost surely, 2^4661320445 is an apocalyptic number.

It is an amenable number.

4661320445 is a deficient number, since it is larger than the sum of its proper divisors (1245833857).

4661320445 is an frugal number, since it uses more digits than its factorization.

4661320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 4661320445 is about 68273.8635570011. The cubic root of 4661320445 is about 1670.4609201406.

The spelling of 4661320445 in words is "four billion, six hundred sixty-one million, three hundred twenty thousand, four hundred forty-five".