4055813665 has 8 divisors (see below), whose sum is σ = 4872531240. Its totient is φ = 3240947712.

The previous prime is 4055813659. The next prime is 4055813717. The reversal of 4055813665 is 5663185504.

It can be written as a sum of positive squares in 4 ways, for example, as 1030923664 + 3024890001 = 32108^2 + 54999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4055813665 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458080 + ... + 466849.

It is an arithmetic number, because the mean of its divisors is an integer number (609066405).

Almost surely, 2^4055813665 is an apocalyptic number.

It is an amenable number.

4055813665 is a deficient number, since it is larger than the sum of its proper divisors (816717575).

4055813665 is an equidigital number, since it uses as much as digits as its factorization.

4055813665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925811.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 4055813665 is about 63685.2703927682. The cubic root of 4055813665 is about 1594.7501978723.

The spelling of 4055813665 in words is "four billion, fifty-five million, eight hundred thirteen thousand, six hundred sixty-five".