3665255632 has 20 divisors (see below), whose sum is σ = 7103669220. Its totient is φ = 1832050688.

The previous prime is 3665255609. The next prime is 3665255707. The reversal of 3665255632 is 2365525663.

It can be written as a sum of positive squares in 2 ways, for example, as 2829814416 + 835441216 = 53196^2 + 28904^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18858 + ... + 87670.

It is an arithmetic number, because the mean of its divisors is an integer number (355183461).

Almost surely, 2^3665255632 is an apocalyptic number.

It is an amenable number.

3665255632 is a deficient number, since it is larger than the sum of its proper divisors (3438413588).

3665255632 is a wasteful number, since it uses less digits than its factorization.

3665255632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72150 (or 72144 counting only the distinct ones).

The product of its digits is 972000, while the sum is 43.

The square root of 3665255632 is about 60541.3547255097. The cubic root of 3665255632 is about 1541.8238401639.

The spelling of 3665255632 in words is "three billion, six hundred sixty-five million, two hundred fifty-five thousand, six hundred thirty-two".