3664522165 has 8 divisors (see below), whose sum is σ = 4405158360. Its totient is φ = 2926463232.

The previous prime is 3664522139. The next prime is 3664522247. The reversal of 3664522165 is 5612254663.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28793956 + 3635728209 = 5366^2 + 60297^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3664522165 - 2⁵ = 3664522133 is a prime.

It is a congruent number.

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, 641184 + ... + 646873.

It is an arithmetic number, because the mean of its divisors is an integer number (550644795).

Almost surely, 2^3664522165 is an apocalyptic number.

It is an amenable number.

3664522165 is a deficient number, since it is larger than the sum of its proper divisors (740636195).

3664522165 is a wasteful number, since it uses less digits than its factorization.

3664522165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288631.

The product of its digits is 259200, while the sum is 40.

The square root of 3664522165 is about 60535.2968523324. The cubic root of 3664522165 is about 1541.7209867331.

The spelling of 3664522165 in words is "three billion, six hundred sixty-four million, five hundred twenty-two thousand, one hundred sixty-five".