4006163365 has 4 divisors (see below), whose sum is σ = 4807396044. Its totient is φ = 3204930688.

The previous prime is 4006163363. The next prime is 4006163429. The reversal of 4006163365 is 5633616004.

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 2646176481 + 1359986884 = 51441^2 + 36878^2 .

It is a cyclic number.

It is not a de Polignac number, because 4006163365 - 2¹ = 4006163363 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 4006163365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006163363) 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, 400616332 + ... + 400616341.

It is an arithmetic number, because the mean of its divisors is an integer number (1201849011).

Almost surely, 2^4006163365 is an apocalyptic number.

It is an amenable number.

4006163365 is a deficient number, since it is larger than the sum of its proper divisors (801232679).

4006163365 is an equidigital number, since it uses as much as digits as its factorization.

4006163365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801232678.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 4006163365 is about 63294.2601268077. The cubic root of 4006163365 is about 1588.2159445784.

Adding to 4006163365 its reverse (5633616004), we get a palindrome (9639779369).

The spelling of 4006163365 in words is "four billion, six million, one hundred sixty-three thousand, three hundred sixty-five".