3664255765 has 8 divisors (see below), whose sum is σ = 4402799928. Its totient is φ = 2927609280.

The previous prime is 3664255747. The next prime is 3664255789. The reversal of 3664255765 is 5675524663.

It can be written as a sum of positive squares in 4 ways, for example, as 1343281 + 3662912484 = 1159^2 + 60522^2 .

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

It is not a de Polignac number, because 3664255765 - 2⁹ = 3664255253 is a prime.

It is a super-2 number, since 2×3664255765² = 26853540622671470450, which contains 22 as substring.

It is a Duffinian number.

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, 470166 + ... + 477895.

It is an arithmetic number, because the mean of its divisors is an integer number (550349991).

Almost surely, 2^3664255765 is an apocalyptic number.

It is an amenable number.

3664255765 is a deficient number, since it is larger than the sum of its proper divisors (738544163).

3664255765 is an equidigital number, since it uses as much as digits as its factorization.

3664255765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948839.

The product of its digits is 4536000, while the sum is 49.

The square root of 3664255765 is about 60533.0964431855. The cubic root of 3664255765 is about 1541.6836262983.

The spelling of 3664255765 in words is "three billion, six hundred sixty-four million, two hundred fifty-five thousand, seven hundred sixty-five".