3656585820004 has 12 divisors (see below), whose sum is σ = 6891257891644. Its totient is φ = 1687654993824.

The previous prime is 3656585820001. The next prime is 3656585820011. The reversal of 3656585820004 is 4000285856563.

It can be written as a sum of positive squares in 2 ways, for example, as 2479365160000 + 1177220660004 = 1574600^2 + 1084998^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 70318958077 = 3656585820004 / (3 + 6 + 5 + 6 + 5 + 8 + 5 + 8 + 2 + 0 + 0 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (3656585820001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35159478987 + ... + 35159479090.

Almost surely, 2^{3656585820004} is an apocalyptic number.

It is an amenable number.

3656585820004 is a deficient number, since it is larger than the sum of its proper divisors (3234672071640).

3656585820004 is a wasteful number, since it uses less digits than its factorization.

3656585820004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70318958094 (or 70318958092 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 3656585820004 in words is "three trillion, six hundred fifty-six billion, five hundred eighty-five million, eight hundred twenty thousand, four".