3820565660 has 12 divisors (see below), whose sum is σ = 8023187928. Its totient is φ = 1528226256.

The previous prime is 3820565653. The next prime is 3820565663. The reversal of 3820565660 is 665650283.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820565663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 95514122 + ... + 95514161.

It is an arithmetic number, because the mean of its divisors is an integer number (668598994).

Almost surely, 2^3820565660 is an apocalyptic number.

It is an amenable number.

3820565660 is an abundant number, since it is smaller than the sum of its proper divisors (4202622268).

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

3820565660 is a wasteful number, since it uses less digits than its factorization.

3820565660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191028292 (or 191028290 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 3820565660 is about 61810.7244739940. The cubic root of 3820565660 is about 1563.3008209341.

The spelling of 3820565660 in words is "three billion, eight hundred twenty million, five hundred sixty-five thousand, six hundred sixty".