4495082665921 has 15 divisors (see below), whose sum is σ = 4657468573983. Its totient is φ = 4338358244640.

The previous prime is 4495082665901. The next prime is 4495082665949. The reversal of 4495082665921 is 1295662805944.

The square root of 4495082665921 is 2120161.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 4468526704321 + 26555961600 = 2113889^2 + 162960^2 .

It is not a de Polignac number, because 4495082665921 - 2¹¹ = 4495082663873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4495082665921.

It is not an unprimeable number, because it can be changed into a prime (4495082665901) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1783054141 + ... + 1783056661.

Almost surely, 2^{4495082665921} is an apocalyptic number.

4495082665921 is the 2120161-st square number.

4495082665921 is the 1060081-st centered octagonal number.

It is an amenable number.

4495082665921 is a deficient number, since it is larger than the sum of its proper divisors (162385908062).

4495082665921 is an frugal number, since it uses more digits than its factorization.

4495082665921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 2550 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 4495082665921 in words is "four trillion, four hundred ninety-five billion, eighty-two million, six hundred sixty-five thousand, nine hundred twenty-one".