3566660821603 has 8 divisors (see below), whose sum is σ = 3891620790720. Its totient is φ = 3241820531880.

The previous prime is 3566660821583. The next prime is 3566660821613. The reversal of 3566660821603 is 3061280666653.

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

It is a cyclic number.

It is not a de Polignac number, because 3566660821603 - 2²¹ = 3566658724451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3566660821613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29857525 + ... + 29976742.

It is an arithmetic number, because the mean of its divisors is an integer number (486452598840).

Almost surely, 2^{3566660821603} is an apocalyptic number.

3566660821603 is a deficient number, since it is larger than the sum of its proper divisors (324959969117).

3566660821603 is a wasteful number, since it uses less digits than its factorization.

3566660821603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59839697.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 3566660821603 in words is "three trillion, five hundred sixty-six billion, six hundred sixty million, eight hundred twenty-one thousand, six hundred three".