3665602000 has 80 divisors (see below), whose sum is σ = 9248908032. Its totient is φ = 1402473600.

The previous prime is 3665601997. The next prime is 3665602013. The reversal of 3665602000 is 2065663.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 3665602000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6157 + ... + 85843.

Almost surely, 2^3665602000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3665602000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4624454016).

3665602000 is an abundant number, since it is smaller than the sum of its proper divisors (5583306032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3665602000 is a wasteful number, since it uses less digits than its factorization.

3665602000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79733 (or 79717 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3665602000 is about 60544.2152480317. The cubic root of 3665602000 is about 1541.8724062733.

Adding to 3665602000 its reverse (2065663), we get a palindrome (3667667663).

The spelling of 3665602000 in words is "three billion, six hundred sixty-five million, six hundred two thousand".