4642648165 has 4 divisors (see below), whose sum is σ = 5571177804. Its totient is φ = 3714118528.

The previous prime is 4642648159. The next prime is 4642648169. The reversal of 4642648165 is 5618462464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2014752996 + 2627895169 = 44886^2 + 51263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4642648165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4642648169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464264812 + ... + 464264821.

It is an arithmetic number, because the mean of its divisors is an integer number (1392794451).

Almost surely, 2^4642648165 is an apocalyptic number.

It is an amenable number.

4642648165 is a deficient number, since it is larger than the sum of its proper divisors (928529639).

4642648165 is an equidigital number, since it uses as much as digits as its factorization.

4642648165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928529638.

The product of its digits is 1105920, while the sum is 46.

The square root of 4642648165 is about 68136.9808914366. The cubic root of 4642648165 is about 1668.2274288677.

The spelling of 4642648165 in words is "four billion, six hundred forty-two million, six hundred forty-eight thousand, one hundred sixty-five".